Domain Name Web Master tools

Free Google Page Rank checker - Check Page Rank of any web site pages instantly free
http://prchecker.info/check_page_rank.php

Free Link Popularity Check Tool-How popular is your Web site? This tool will show you how many other sites are linking to you.
http://www.submitexpress.com/linkpop/

Free Expired domain names list and Deleted domain names list with Alexa traffic rank,Google Page Rank,Overture,WayBack,Yahoo links,MSN links,Dictionary names etc
http://www.odditysoftware.com/page-dailydomains.htm

Free tool to test the web to keep you safe from spyware,spam,viruses and online scams.It also reports about web site start date,country,popularity,contact info etc.
http://www.siteadvisor.com/sites/

100 Top Paying Keywords
http://7search.com/scripts/searchterms/top_paying.asp?n=100

Top searched keywords on Google
http://www.google.com/press/intl-zeitgeist.html

Bulk domain name availability check tool free trial version
http://www.avensen.com/download/

Free Keyword Selector Tool from overture.com
Related searches that include your term
How many times that term was searched on last month
http://inventory.overture.com/d/searchinventory/suggestion/

Google Adsense formats view WYSIWYG
https://www.google.com/adsense/adformats?sourceid=asos&subid=ww-ww-et-resource_box&medium=link

More webmaster tools
http://www.selfseo.com/