Not sure about Adwords, but here is some slightly related info. First I would fix those meta tags. I did not see any keywords at all. <meta name="description"

Not sure about Adwords, but here is some slightly related info. First I would fix those meta tags. I did not see any keywords at all. <meta name="description" content= <meta name="keywords" content= <meta name="robots" content= <meta http-equiv="Content-Type" content=" <meta name="verify-v1" content=" With Adwords long tail keywords seem to be an ok bet. I hope you are using different landing page for small business, enterprise and personal with an incentive and a lead capture form (just in case someone wants to leave). Buying cheap traffic can convert better than Adwords sometimes, specially if you have a free product. Affiliate networks are great as well. Although they are not sexy, sexy companies such as Apple use them all the time. Asking the bloggers to use the proper anchor text will help as well. Most of these blogs have a high PR and they will use your company name as an anchor text which is pointless. The anchor text should be those keywords that you target.