Bad practice SEO
Content spam
This involves the over use of keywords stuffed in to content, hidden or invisible text, meta tag stuffing, gate way pages, scraper sites, and Article spinning
Link spam
Link Building Software, Link farms, Hidden links, 'Sybil attack', Spam blogs, Page hijacking, Buying expired domains, Cookie stuffing, Spam in blogs, Comment spam, Wiki spam, Referrer log spamming
Clocking
This involves presenting a different page to a search engine spider that is different from what is seen by a human.
If you would like a quote for a legitimate SEO service that produces results click here
