As far as I know, we do not have a specific policy regarding blog posts yet, but you can check out these other policies if you decide to contribute to the wiki further and have questions (of course you can always ask us as well). Anyways, thanks for understanding my message.
I read an old comment on one of them (by Shrev) stating they should be merged into the timeline page, given how low the content is one some of 'em. I'd figured if the information from those pages is already mentioned on the timeline, it wouldn't be necessary to keep them.
If you don't agree with this, let me know and I can remove those tags.