Google vs Yahoo Graph by seobench.com
Shows a graphic display of top 50 in Google & Yahoo with the sites that are in both SERP linked.

Keyword Density Analyzer by seobench.com
Enter URL, will calculate and return the keyword density of key phrases which are 1,2 and 3 words long.

Multi DC PageRank Checker by seobench.com
This tool will query the various Google Data Centers to check for any changes in PageRank values for a website. Helps you get a peek at your websites NEW PR during a PageRank update.

Retrieve SERPs by seocritique.com
Google dataceter SERP checker. Input the keyword and select the range of datacenter

Alexa Page Ranking by Alexaranking.com
allows you to cut and paste a number of domians and get the 3 month Alexa Ranking or you can browse y harddrive and provide a list of domains. If you have a number of sites and you want to see the Alexa Rankings, this is the way to do it.

Alexa Rank Tool by SearchBliss
gives you the Alexa Web Rank plus today, 1 week and 3 months average rank.

Alexa Ranking by Evrsoft
allows you to cut and paste a number of domians and get the 3 month Alexa Ranking or you can browse your harddrive and provide a list of domains. If you have a number of sites and you want to see the Alexa Rankings, this is the way to do it.

Alexa Related Rank Check by 123 Promotion
gives you 10 seperate fields to enter domains and gives you the same day, 1 week ago and 3 month average Alexa Rank. It also shows the movement up or down in the last 3 months.