I have spent a good deal of time researching the domain name marketplace and have come across some really good resources that will be of help to anyone interested:

Dnforum – Great forum site discussing most issues about domains
Whois Source – Best whois site I have been able to find with excellent features
Snapnames – Service that allows you to “Backorder” domain names that expire
Name Winner – Similar to above service except that they use an auction style
Marketleap – See how “popular” a site is base on search engine links
Alexa – Get traffic, external links, and site history from the wayback machine
Overture – See the popularity of search engine keywords

email