I’ve covered link cloaking before. It’s usually not hard to spot. Those that do it usually do so in excess. While discussing SearchEngineWorld.com and possible link cloaking David Naylor brings to light that Google is showing site => redirect => site links compared to Yahoo only showing site => site links with a backlink check.
For example, a site that is number one for a very competitive phrase shows only 84 backlinks in Yahoo while the number two spot shows over 100,000 links. Using the Google backlink search you get a much better understanding of how this can happen even if the Google data is incomplete.
If you are wanting real life examples then don’t worry. I’ll give one in an upcoming post.