I highly recommend the 10 secret of keyword optimazation
find all relevant generic keywords and category based keywords using all the tools you can find
build a list of target url's of all the target keywords
promote all the keywords until it reaches #1)
find all the keywords that produced the most revenue
make sure you rank #1 on all profitable keywords
keep on trying to ranking the weaker keywords
stop promoting those keywords with no sale after a period of time
find all relevant keywords where your...
