it's walking up a slippery slope, but not impossible. i have seen it done; i doubt it's a hand shake under the table. just think of all the sites that link to wikipedia in order to cite a definition with the keyword, which the wikipedia article defines, as anchor text.
according to yahoo! over 6 million pages link to wikipedia:
but if you can't beat them join them; write some encyclopedic pages of your own:
what wikipedia teaches
[edited by: tedster at 3:11 am (utc) on May 9, 2009]
[edit reason] clarify link [/edit]