Ad Hunter is aimed at advertisers who intend to use Google's AdWords pay-per-click advertising program. The AdWords program can be expensive if you don't know what you're doing. If you can find a popular keyword, which has only a handful of advertisers bidding for it then you've a chance of paying only pennies if someone clicks your AdWords advertisement. Sounds easy. Sounds simple, right? Like so many things in life, that's only half the equation. The other half is Google's 'Quality Score', which measures not only the relevance of your AdWords ad, but also the relevance of the page which the ad clicks through to. While no one except Google really knows, the quality score may also depend on not just the landing page, but also the whole of the web site of which it forms a part. Ad Hunter helps you not only find cheap keywords easily, but it also helps with 'quality score' too. Buy now - only £5.99.