网络营销-文摘

Ranking criteria that can be found on a web page. These factors include: text on the page, meta-tags, keyword density,keyword proximity, etc.

When a search engine ranks pages by using data that is not present on the web page itself. This could be the presence of a directory listing, or the number and quality of inbound links to a page.

The measure the quantity and/or quality of sites that link back to your web page.

links are important to you.

Links are a source of targeted traffic.
Links from similar themed websites drive relevant traffic interested in your website and the products it offers. Targeted traffic is more apt to convert into a sale. When you buy relevant links you gain both direct and indirect value.

Relevant links raise your natural search engine rankings.
Links connect you to the major search engines for inclusion into their database.Additionally, search engines use links in their relevancy algorithms. By securing links on relevant websites you are ensuring that your website will be included and ranked accordingly. Building incoming links to your website is the most important thing you can do to increase your organic search engine rankings.

美国仍是垃圾电子邮件的最大产出国，其垃圾邮件数量占全球垃圾邮件数量的23.1％；其次是中国内地和香港，垃圾邮件比例为21.9％；韩国位居第三位，所占比例为9.8％。而亚洲超越北美成为全球最大垃圾邮件发源。

Google收录网页除爬虫googlebot外， 还有mediabot。 大家知道， adsense是根据网页内容显示与之相关联的关键字广告，其中计算相关联度就是由mediabot来完成。

由mediabot抓取的结果会被收录在google big daddy里,从而影响网站被google收录数量，但不影响PageRank ，好象这又是个新的url submission方法。

Google AdSense MediaBot is Crawling Sites says Matt Cutts

A trademark filing by an attorney on behalf of Microsoft for ownership of the term “relerank,” a combination of relevancy and rank.

三大搜索引擎商的王牌:

Google - pagerank

Yahoo - webrank

MSN - Relerank

“relerank” 定义是，用来从搜索引擎 软件 组织、显示并管理搜索结果的电脑软件。它关键比google好使用，在于聚类引擎是采用的计算机自动分词技术，能把搜索结果进行归类显示，不像现在广泛采用第二代搜索引擎技术，使用者搜索某一关键词，搜索结果会是几千个页面（信息过载）。搜索引擎技术“relerank” 最贴近个性化搜索本意的做法，并使搜索服务具有粘性，智能聚类，对搜索结果提供进一步的内容分类，并没有改变搜索结果，只是改变了搜索结果线性排列，使用户能更好地查看和选择结果。

The Crawler Simulator checks if your site can be spiderable by the Search Engines. It helps you view your website with the eyes of a Search Engine.

Google 有chat in gmail ， Sina 也来个 WooCall on webpage 。

培养用户“粘度”的方法有很多种。但是这些方法归根到底就是要和用户进行沟通，了解他们的需求，满足他们的需要。

1.多元化服务

2.提供真正有用的信息，网站归根到底吸引人的还是信息

3.融信息于娱乐中

4.品牌流通性

5.连续性的宣传活动