Link Spamming on Google

SEO Roundtable had a great article about Linkspamming Google.  Here are the keys to remember to help you identify link schemes:

1. Links are intended to manipulate PageRank
2. Links to web spammers or bad neighborhoods on the web
3. Excessive reciprocal links or excessive link exchanging
4. Buying or selling links that pass PageRank

Read the original article by clicking here.  

Read Google's guidelines on link schemes by clicking here.