Here is the list that Google mey consider low quality links
- Links from sites with too many outgoing links
- Links from low-quality blog networks
- Links from sites with too many consecutive links (like sponsored links)
- Too high a number of sitewide links
- Too many links from sites with low Google PageRank
- Too many links from sites with related IP addresses
- The use of a certain keyword too many times in a link anchor text
- Links from sites with a subject that is irrelevant to your own site
- Links from link exchange-type pages
- Links from low-quality directories
- Links from footers
- Links from blog and forum comments
