You can’t use Wikipedia directly to boost your SEO (search engine optimization), but you can use it indirectly.
Google includes a website’s (quality) inbound links as part of its ranking formula. Thus, it would seem that a link from Wikipedia to your website (either to the homepage or to a story/article) would be helpful.
Unfortunately, if you look at the source code for Wikipedia, you’ll see it uses <rel=”nofollow“> for its links, which means Google won’t count it for the inbound tally.
But there is some shining light. Since your website was considered worthwhile to which to link by the overly strict editing community at Wikipedia–their subjectivity is a major flaw–other websites may eventually link to yours. Assuming they don’t use the “nofollow” code, you’ll get the SEO boost from them.
Of course, you shouldn’t make this tactic the centerpiece of your SEO strategy, but every little bit counts.