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2006-03-29
我看RSS系列
版权声明：转载时请以超链接形式标明文章原始出处和作者信息及本声明
http://duoqucom.blogbus.com/logs/2160066.html
自去年的9月份，和一个朋友聊天，了解到了web2.0，也了解到了RSS，那时我一下子就被RSS其信息渠道的特性所吸引，一个想法，我可以用它来做一个互联网上的移动梦网。10月份，我们开始做了这个网站，在不断的深入过程中，发现了很多问题，也更加清楚了目前的市场状况，下面我把这半年多来，思考成果写出来，与大家共享。初步计划写下面几个话题：
1、当前RSS的发展状况
2、RSS所面临的困难
3、RSS未来的发展
4、RSS动了谁的奶酪
5、小公司VS大公司
（一） RSS的发展状况
Web2.0的春风吹了许久，RSS也是其中备受关注的一个技术，那么它的市场接受程度到底如何呢？
记得去年看过一份报告，说美国市场接受程度如何如何，具体数值我记不太清楚了，这里我就不说了，说说我身边的。参加过几次互联网创业聚会，来的人应该都是圈内的，可但主持人问，有多少人了解RSS的时候，估计不到1/4，使用过的更是少数。身边的人就更不用说了，我向他们讲了如何使用阅读器来阅读博客，他们也确实觉得方便，可后来就基本就放到一边了，又有多少人需要阅读博客呢？
下面，我们来说一下在RSS概念下的几个领域：
1、 离线RSS阅读器
去年接触的时候有很多款，国内的和国外的，国内的比较有名的：看天下，周博通等。RSS本来使用的就是面向机器的xml语言，所以说开发门槛不是很高，做一款不错的阅读器应该不难，软件现在主要在拼性能和拼界面。虽然看似很多款阅读器，实际上很多都是做出来就放在那里，公司也大多没有做升级和推广工作。
周博通算是做的比较好的了，3月份吧，下载次数超过500W，不过同时在线的数量并不高。去年年底，有风险投资商与他们接触过，据说给的价格比较低，没有谈拢。
看天下，去年如果你在google里面搜索RSS，一定能看到他们的广告，不过后来听说他们已经不做RSS阅读器了。
2、 在线RSS阅读器
在做阅读器方面，主要有两个方向，一个是采用专门的客户端软件，另外就是使用web的方式。在线阅读器就是指就是使用web的方式。
现在在做RSS阅读器方面，主要有两个方向：一种是以gougou为主的采用树型结构显示；一种是以google live和windows live为主采用ajax技术，桌面型显示的方式；还有一种，就是我目前在做的个人信息门户www.duoqu.com。
第一种、在在线阅读器方面，gougou的影响力还是很大的，一个是其界面做的简单，实用，另外做的也早；刚才又去gougou转了一圈，和去年9月份没有什么变化。听他们公司的人讲，目前他们主要在做一个游戏网站，那个有明确的盈利模式，所以gougou这边只是维持。
第二种、去年google live和windows live推出来之后，大家都在为gougou捏了一把汗，很快国内也出来了模仿者，比如okrss。不过我感觉，大半年过去了，google live 和windows live并没什么大的变化，我身边也没听说几个人在使用，我感觉他们并没有深入。Windows live的战略已经出来，他更多的定位是通讯等的整合，对RSS厂商的冲击并不大。
而目前桌面型阅读器的缺点在于：由于它是采用ajax技术，只是现场解析RSS源，因此以方面当用户订阅了多个RSS的时候，IE需要同时访问若干个RSS源，会对客户端的性能造成一定影响，尤其是订阅一个比较大的RSS Feed的时候，比如说新浪新闻的RSS，有的达300K；另外它不能为用户保存该RSS的历史记录，这个是比较致命的。该技术的一个好处就是，信息的处理与服务器无关，服务器的压力很小，而gougou的服务器压力就很大。
第三种、也就是我目前正在做的duoqu.com，它更象一个树型阅读器和桌面型阅读器的结合。在显示上，采用桌面的形式，在数据处理上采用gougou的方式，这样用户阅读RSS显的美观，同时对客户端的性能没有影响，服务器还能为用户保存历史记录。
3、 RSS托管
国外做的有feedburn，国内做的有feedsky，在聚会上，我也见过feedsky的团队。我觉得对RSS的概念还是有一定了解，但当我第一次登陆到feedsky，面对4个大的图标，还是不明白是怎么一回事。
简单的说，feedsky是做RSS托管，RSS源的作者，可以把RSS源交给feedsky，feedsky可以帮你宣传，可以在你的RSS源里面加一些广告之类的，帮你赚钱；还可以帮你统计，订阅的数量。对于阅读者，它可以将多个RSS源合并成一个RSS源，即所谓的合烧，其实合烧这类功能，阅读器完全能够做的到。前些天看报导，他们好像在与SP合作，向移动领域发展。
个人不看好feedsky，不好用，而且他所提供的RSS的分类，排序并不好用，国内做这块业务的也就这一家，说明看好的人并不多。
实际上真正在RSS这块获得收益的，是类似博拉这样的公司，他们通过订阅各个博客的RSS，获取他们每日最新的文章，然后由编辑负责筛选，精华的发布到网站上。如果没有RSS，他们根本就无法获得每个博客最新文章。还有，比如说RSS搜索之类，这更多的是在探索。
好，今天就喷到这，明天写《RSS所面临的问题》
我的MSN：loughsky123@hotmail.com
网址： www.duoqu.com
blog: duoqucom.blogbus.com
随机文章：
大锅饭与承包到户 2006-04-11关于解决RSS信息来源的问题 2006-04-03RSS将会给业界带来的变革 2006-03-31RSS所面临的问题 2006-03-30开放出天气预报的接口 2006-04-04
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Tramadol (TRAM a doll)
What is the most important information I should know about Ultram?
Seizures have been reported as a rare side effect of treatment with Ultram. The risk of seizures may be increased in patients who take more than the prescribed dose, have a history of seizures or epilepsy, have head trauma, have a metabolic disorder, have a central nervous system infection, are experiencing alcohol or drug withdrawal, or are taking certain medications. Talk to your doctor about factors that may increase the risk of seizures during treatment.
Do not drink alcohol while taking Ultram. Alcohol may cause a dangerous decrease in breathing and/or liver problems when used during treatment with Ultram.
Use caution when driving, operating machinery, or performing other hazardous activities. Ultram may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.
Do not take more of this medication than is prescribed for you. If the pain is not being controlled, talk to your doctor. Taking more than the prescribed amount of this medication could result in seizures or decreased breathing.
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Zithromax
azithromycin (ay zih throw MYE sin)
Zithromax, Zithromax Z-Pak
What is the most important information I should know about Zithromax?
Take all of the Zithromax that has been prescribed for you even if you begin to feel better. Your symptoms may start to improve before the infection is completely treated.
Take Zithromax on an empty stomach 1 hour before or 2 hours after meals.
Do not take antacids that contain aluminum or magnesium within 2 hours of taking Zithromax
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Tramadol
(TRAM a doll)
Ultram
What is the most important information I should know about tramadol?
Seizures have been reported as a rare side effect of treatment with tramadol. The risk of seizures may be increased in patients who take more than the prescribed dose, have a history of seizures or epilepsy, have head trauma, have a metabolic disorder, have a central nervous system infection, are experiencing alcohol or drug withdrawal, or are taking certain medications. Talk to your doctor about factors that may increase the risk of seizures during treatment.
Do not drink alcohol while taking tramadol. Alcohol may cause a dangerous decrease in breathing and/or liver problems when used during treatment with tramadol.
Use caution when driving, operating machinery, or performing other hazardous activities. Tramadol may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.
Do not take more of this medication than is prescribed for you. If the pain is not being controlled, talk to your doctor. Taking more than the prescribed amount of this medication could result in seizures or decreased breathing.
What is tramadol?
Tramadol is a pain reliever. Tramadol affects chemicals and receptors in the body that are associated with pain.
Tramadol is used to relieve moderate to moderately severe pain.
Tramadol may also be used for purposes other than those listed in this medication guide.
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Use caution when driving, operating machinery, or performing other hazardous activities. Amphetamine may cause dizziness, blurred vision, or restlessness, and it may hide the symptoms of extreme tiredness. If you experience these effects, avoid hazardous activities.
Do not take phentermine late in the day. A dose taken too late in the day can cause insomnia.
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sulfamethoxazole and trimethoprim (sul fa meth OX a zole and trye METH oh prim)
Bactrim, Bactrim DS, Bactrim Pediatric, Bethaprim, Bethaprim Pediatric, Cotrim, Cotrim DS, Cotrim Pediatric, Septra, Septra DS, Sulfatrim, Sulfatrim Pediatric, Sulfatrim Suspension, Uroplus, Uroplus DS
What is the most important information I should know about Bactrim?
Take all of the Bactrim that has been prescribed for you even if you begin to feel better. Your symptoms may start to improve before the infection is completely treated.
What is Bactrim?
Sulfamethoxazole and trimethoprim are both antibiotics that treat different types of bacterial infections. Sulfamethoxazole and trimethoprim fight bacteria in your body.
Bactrim is used to treat infections such as urinary tract infections, bronchitis, ear infections (otitis), traveler\'s diarrhea, and Pneumocystis carinii pneumonia.
Bactrim may also be used for purposes other than those listed in this medication guide
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Carisoprodol
(kar eye soe PROE dole)
Soma, Vanadom
What is the most important information I should know about carisoprodol?
Use caution when driving, operating machinery, or performing other hazardous activities. Carisoprodol may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.
Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking carisoprodol.
What is carisoprodol?
Carisoprodol is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to your brain.
Carisoprodol is used, along with rest and physical therapy, to treat injuries and other painful muscular conditions.
Carisoprodol may also be used for purposes other than those listed in this medication guide.
Who should not take carisoprodol?
Do not take carisoprodol if you have acute intermittent porphyria.
Before taking carisoprodol, tell your doctor if you have kidney or liver disease. You may need a lower dose or special monitoring during your therapy.
It is not known whether carisoprodol will harm an unborn baby. Do not take carisoprodol without first talking to your doctor if you are pregnant.
It is also not known whether carisoprodol passes into breast milk. Do not take carisoprodol without first talking to your doctor if you are breast-feeding a baby.
Carisoprodol is not approved for use in children younger than 12 years of age.
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tadalafil
What is the most important information I should know about Cialis (tadalafil)?
Do not take Cialis (tadalafil) if you are taking any of the following medicines:
a nitrate such as nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, Minitran, Deponit, Transderm-Nitro, others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), isosorbide mononitrate (Imdur, ISMO, Monoket), and others;
nitrates are also found in some recreational drugs such as amyl nitrate or nitrite (\"poppers\"); or
an alpha blocker (other than tamsulosin (Flomax) 0.4 mg once a day) such as doxazosin (Cardura), guanadrel (Hylorel), prazosin (Minipress), terazosin (Hytrin), alfuzosin (Uroxatral), and others.
Taking Cialis (tadalafil) with any of these medications may cause very low blood pressure, possibly resulting in dizziness, fainting, stroke, or heart attack.
Contact your doctor or seek emergency medical attention for any erection that lasts longer than 4 hours. A sustained erection can damage the penis.
Refrain from further sexual activity and notify your doctor it you develop dizziness, nausea, or angina (pain, tightness, discomfort, numbness, or tingling in the chest, arms, neck, or jaw) during sexual activity.
Cialis (tadalafil) is usually taken when needed before sexual activity. The effects of Cialis (tadalafil) may last for up to 36 hours or more. Your doctor will determine how often you can take Cialis (tadalafil). Do not take Cialis (tadalafil) more often than is directed by your doctor.
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