how does one do this? like search for keyword domains based on how many times those keywords are searched for in google and yahoo?
I had these 2 pieces of software before called Amanda and some other girls names and you put in key words and it finds similar domains with the key word and other words in it and how popular those keywords are searched.
Overture is probably the most commonly used engine for this. http://inventory.overture.com. This is a very common method for buying domain names, and for investing in them it is highly recommend you do your research before purchasing. Keyword counts are an important part of that research.