The importance of .edu links is very much common in search engine forum discussions. But well, experienced suggest that it is worthwhile to buy EDU links in order to get good rank in search engines. Performance wise one edu link is equal to ten normal links that are .com, .biz, .org, .net etc. In order to get good performance in search engine ranking buy edu links related to your content. The search engines give importance to edu links because these are educational institutes. This institutes give valuable information to the world. Therefore search engines consider edu sites are high authority sites. If links come edu to "your site" means search engines consider some valuable information present in your site. The dot govt sites also improve your ranking.