I get a lot of PMs by new members and even old ones asking for suggestion on keywords they have selected. They say that "Google says the competition is low" by looking at the competition bar (pic below) in the Google Keyword Tool.
Well guys..I've got some bad news for you. This is NOT the SEO competition, it is actually competition for advertisers, the amount of bidding going on for that particular keyword. So if you are making an Adsense site, you want the competition to be "High" in the Google Keyword Tool.
More Competition=More Bidders=Better Payout
It's called the Adwords keyword tool - not the SEO keyword tool.
While a lot of people use tools such as market samurai to decide which keywords to go for, I do a lot, lot more than this.
Just one "golden nugget" keyword and your investment with me will be a good one...of course you will then need to carry on with marketing.
If you are not sure about your keywords, I highly recommend you make this small investment to ensure your seo efforts are not in vain.