UrlTrends A free service that allows you to view any URLs PageRank™, Alexa Rank, popular search terms, incoming links and more!
Fagan Finder's URL Info: This online tool is giving you one-page access to dozens of pertinent check-ups. You can use URL Info to check that your HTML code is validated, translate your page, and if you're a blogger, discover where your site is mentioned in the blogosphere.
GoRank.com's Top Ten Comparison - If you've figured out why you haven't hit the top ten results in Google, GoRank.com has a page that can give you important clues to help you figure it out.
Finding Information About Your Site In Yahoo - This document will tell you how to find out what sites are linking to you, give you the results for how many pages of your site are in Yahoo, and more.
Discovering Your Site's Status on MSN - As the page in the help section states, you can use site:www.yoursitehere.com to find out if a document at your site has been indexed.
Google Rankings - With Google Rankings, you'll be able to see where you rank within the top 40-1000 results in Google for a given keyword. I recently noticed that it also displays results for MSN and Yahoo, with links to each search engine.
You'll need a free Google API key for this one, and this site has the direct link telling you where to get one. You'll have to enter this key in order to query the site for information on Google.
