http://micahjih.bravesites.com/entries/general/the-following-20-things-to-right-away-do-about-%E0%B8%A3%E0%B8%B1%E0%B8%9A%E0%B8%97%E0%B8%B3-seo <a href="http://blog.easybranches.com/activity-streams/p/865926/">wikipedia reference</a>