With Market Samurai we can check SEOC (indexed pages in google) and/or SEOTC (phrase in TITLE).

I personally use SEOTC in Market Samurai as a first indication of competition strength. I *think* the SEOC value is totally meaningless since it does say nothing about competition strength "how many sites are indexed in Google for a keyword". It really doesn't matter since competition can still be strong/weak regardless of many sites are indexed.

Micro Niche Finder...

Gold for SEOs and linkbuilders:

TouchGraph | Products: Google Browser

Shows relationships of sites and keywords graphically. It basically shows what sites google thinks are relevant. Still new..worth playing around with it!