Here are some tips on what to avoid so that your link building efforts remain in line with Google Panda:
Avoid link submissions to directories that have hundreds (or even thousands) of irrelevant links included in its categories.
Avoid submitting a link to a site that has an inordinate amount of ads on a page with little to no quality content.
Don’t necessarily rely on a submission site’s PageRank. A site’s PageRank is not always accurate in the first place, plus, its importance has been greatly reduced as of late, as it’s generally not an accurate gauge of a website’s authority.
Is the category/page you wish to submit your link to even in the search engine indexes? This sounds obvious, but if Google hasn’t crawled and indexed a page in a directory, it’s not going to attribute that inbound link to your site and your efforts will be in vain. Additionally, if a page in a directory is not indexed, this could be indicative that Google has either penalized that directory or the site has poor programming, inhibiting crawler access.
Remember, the Panda Update penalties will impact your whole site and the effects can be drastic, so ensure that your link cultivation efforts aren’t thwarted because of submission to one or two low quality directories. Major websites have been penalized for their link building practices due to Panda, including JCPenney, so no one is immune.