Cool & free Webmaster Tools

Keyword Optimizer
Robots.txt
google vs yahoo search results
indexed pages
keyword cloud
keyword density
keyword difficulty check
link price calculator
mata analyzer
meta tag generator
adsense calculator
advanced meta-tags generator
alexa rank comparison
check server headers
CPM Advertising ROI Calculator
Domain Age Tool
Domain Typo Generator Tool
Future PageRank
Keyword Suggestions for Google
Link Popularity Check
Multiple Data Center Google Search
Search Engine Friendly
Spider Simulator
URL Rewriting