Influence of Web 2.0 technology on SEO

With the development of Web 2006 technology in 2.0, the search engine is constantly adjusting its website crawling policy and ranking algorithm.
With the development of web technology in, search engines are constantly adjusting their website crawling policies and ranking algorithms, the following describes the impact of Web2.0 technology on SEO (Search Engine Optimization and Search Engine Optimization.
Improvement of search engine for RSS
SEO technology has always been focused on more quality original content, more targeted article titles and more attractive article summaries. Since the rise of blogs in 2006, RSS subscriptions have also become popular, which has greatly changed the way many people read online, however, search engines constantly improve their ranking algorithms following users' attention. Therefore, it is very important to provide an RSS subscription function for your website content system, and you will find that the effect is very good.
Now, both Google, MSN, and Yahoo are used for search results. For example, when you use Google to search for a very popular Blog-boing, you will find that the third most popular Blog is the Flog recorded by FeedBurner. In fact, we will find that Google does provide additional pr values for websites with Flog.
Of course, some websites do not want some RSS to be indexed by the search engine. RSS2.0 can already add tags for RSS Flogs, such as noindex and follow. The search engine will no longer index your RSS.
Supplementary material questions
Google's supplementary materials are the SEO issues that are of great interest this year.
The Supplemental Result is part of the Google secondary index. The number of secondary indexes to be crawled is less than the primary index. For example, the parameters of a website may make the website unable to be crawled into the primary index, but it may still be crawled into the supplementary Index of Google.
According to Google, web pages that serve as supplementary materials are only auxiliary and complementary indexes and are not the primary indexes. That is to say, these webpages are not in the Google primary database, but in the secondary database. In general, when we perform a search on Google, it shows us the webpage in the primary database rather than the webpage in the secondary database. From this, we can draw a conclusion that Google's performance will be very poor as a complementary webpage.
According to the observations of some search engine crawlers, webpages that are used as supplementary materials are crawled by Google crawlers at a very long interval. In many cases, Google crawlers do not visit websites for months or even half a year, seriously affects updates to webpages in Google databases. At the same time, the rankings of these web pages are very poor, and will be listed by Google only when there are few search results. Generally, these webpages cannot be seen in the search results.