My detailed naming process explained, including a recent client case study with a surprising benefit to working through my naming system:
A quick and easy slide presentation on strategic naming
A book on the naming process from a freelancer who worked in some of the top San Francisco consultancies.
A couple of online articles
Why It Took 6 Weeks To Choose A Domain on Smallbusinesssem
Naming Overcast a naming process breakdown by Marco Arment (former lead developer at Tumblr and creator of Instapaper)
This domaine name search and brainstorming tool will save you huge amounts of time finding available domains.
A high level PDF on naming from one of the top naming agencies in the country: