Most bloggers use it on their blogs especially if they are using Wordpress. Some of them even modified the title as "Other Search Terms" or just the plain "Incoming Search Terms". This plugin was often located at the end of every post/article.

The Incoming Search Terms Plugin is a powerful tool for tagging keywords used by searchers to look for something/anything on the web. In the case of Wordpress users, they have the plugin called "SEO SearchTerms Tagging 2" which do all of it. According to its page (http://wordpress.org/extend/plugins/searchterms-tagging-2/), here are some of its advantages:

1. Increase your site's SERP by strengthening on page SEO of your blog.
2. Increase the number of pages indexed by adding a special link to search results.
3. Make sure all posts have been indexed by promoting the one that does not get traffic yet.
4. Get detail information about what are the best keywords for your web site and blog post.

Wondering how it looks like? Here is a screenshot:

Wordpress' Incoming Search Terms Plugin

Does Incoming Search Terms Plugin for Blogger/Blogspot Exist?

Yes, for Blogger/Blogspot users like us, we want to have it too for our blogs. But unfortunately, we can't still have it because no one has created the blogspot version of the said plugin. I am trying to look for it all over the Internet but to no avail. "There is no such thing - "Incoming Search Terms (Tagging) Plugin - for us, Blogger users. Maybe we should wait a little bit more time or it would be really better if we code it by ourselves.