Sitemaps.org - Google - Yahoo - Microsoft!
Seems like the search engine #1 #2 and #3 have come together to cook up something to make their jobs easier. Meet sitemaps.org Basically you tell them the links your site using a xml file and let them know what you think is relatively important. There was already a "Sitemaps" as part of Google Webmaster's Tools which had similar features. Its good that they standardized the protocol across three major search engines and have made the specification licensed under Attribution-ShareAlike Creative Commons license. And there are many online sitemaps generators. But there seems to be no way to add one to blogspot.