I know I have [one / several / dozens of ] links that Webmaster Tools isn showing. What gives?
Although the link reports in Webmaster Tools are more comprehensive than doing a [link:example.com] query in Google search, they may not include 100% of all links that you know about. This is normal and should not be cause for alarm. Webmaster Tools does not always show 100% of the links that Google knows about, so just because a particular link doesn’t appear in Webmaster Tools doesn’t mean that Google doesn’t know about that link, or that your site isn’t “getting credit” for that link. Note that the link report in Webmaster Tools only shows whether a site is linking to yours; it doesn’t show which links are most significant, and it can include links that are nofollowed or that don’t pass PageRank.