SEO is Search Engine Optimization, which is the methodology in which many different techniques or strategies are employed to try and get websites ranking higher in the search engines. Blog comment spamming is done in the name of SEO to try and get more backlinks to a website. Generally, websites with more backlinks from other websites will rank higher in the search engines. The true professional SEO’s despise the spammers for two reasons. They probably own websites that are being spammed by them and, secondly, spammers pretend to be SEO’s and sell “SEO” packages, which are really just junk link spam packages. Inevitably the strategy fails and it gives the whole SEO industry a bad name. Google, in particular is clamping down on websites that resort to the spam link building. Spam link building is the blog comments spam (that I am ridiculing here in this site); the forum profile spam; the web directory spam; wiki spam; the press release spam; the social bookmarking spam; the Twitter spam; etc. It does not work well in the medium to long term. Sites that rely on these forms of link building will fail over the longer term.