Forum:Are Blogs valid sources?

In going through many of the pages, it looks like most of the rumors are sourced to blogs. Most of the time the blogs either have no sources or are sourced from other blogs...that is, two or three blogs share the same rumor. Still, there is no firm source. Are blogs a valid source? If so, how do we determine which blog is valid and which is not? Also, to blogs trump sources such as the BBC? Is there a policy on this? If so, could somebody point me to it? Thanks! -- Rest In Peace Sarah Jane \ Talk to me! 19:41, April 21, 2011 (UTC) PS. Why do I still need to do captcha even though I am registered?


 * In our Tardis:Manual of Style sources section states "please do not cite sources such as; fan forums, fan blogs, or other truly unofficial material".
 * With regard to the captcha, newly registered users who have been registered for less than 4 days will be presented with the captcha, after that it should go away, if you're still presented with it after this time log out and log back in. --Tangerineduel / talk 12:59, April 23, 2011 (UTC)
 * Thanks...with regards to the blogs, what constitutes a "fan blog" vs an "official" blog? -- Rest In Peace Sarah Jane \ Talk to me! 15:20, April 25, 2011 (UTC)