How to Credit Articles Published on Wikipedia

Unlike stories published on news websites and blogs that generally remain static throughout their life, Wikipedia articles change with time.

Therefore when you refer to a Wikipedia page in a blog, try linking to the current snapshot, not the primary article, else your readers may miss context when they visit Wikipedia because the page may have completely changed.

The URL of the latest snapshot is in the sidebar as "Permanent Link".

http://en.wikipedia.org/w/index.php?title=Google&oldid=213435959