I forgot to mention this story when it first came out, but Wired featured an article early last month on Scirus, a science search engine that indexes 167 million scientific web pages for its results. Good to see Scirus is still doing well; I have mentioned the site in both 2002 and 2003. Scirus

So Amazon is getting into the search business, eh? Yesterday the online retail monster unveiled A9, which appears to be a promising new addition to the search engine world. First of all, it relies on Google’s search results, so you can’t go wrong there. But it also adds several intriguing features of its own.

The new HotBot Toolbar has all of the usual features of a search toolbar: pop-up blocker, highlighter, search engine, etc. It also allows you to subscribe to RSS feeds, and it has the ability to search your computer files, e-mail, RSS, and browser history.

4/27 Update: Chris Sherman wrote a nice review of the