Rational minimum for new blog
 

Question in terms of 'what it need to have' so...

time/posts: some ppl want blogs that are x months old, but if you have new blog (indexed in google) with 15-20 posts this particular rule loose sense...

host: accepting free host or nope?

content: ha, that's a good one :)

Uh.. who are these people you're talking about?
That might help in giving you an answer.

Doesn't really matter... I'm asking cause Ill be setting up a lot of fresh blogs : )