I have engineered some SEO and Webmaster tools that I find useful on my day to day SEO/SEM/SMO work that I wanted to post. I will be having more tools created as soon as I have some free time but make sure you social bookmark these pages so you can get to these tools easily.

Check the Google Data Centers

Check your Current Search Engine Rankings in Google, Ask, MSN and Yahoo!

Check Indexed Pages

Get Keywords for your site and keyword suggestions for FREE!

IP lookup is great to see if the sites you are getting links from are IP farmed.

Check your Link Popularity

Check DMOZ and Yahoo directory

Ping a site

Create meta tags