.Biz, .org or .us ?

If you're going purely for SEO, then type-ins won't matter anyways. My order of prefs are .com .org .net and then .co.uk

Again, this is coming purely from just my onw SEO results experiences.
 


I just bought some .tv domains that were very close to being keyword matches (KeywordKeywordNow.tv) - just wondering if I've wasted my money. Is it worth developing and building links to .tv domains?

I was going to make them video-a-day blogs. It wasn't my first choice but it's all that was available. I did find a .tv domain in the top 10 for that phrase though.
 
I would strongly recommend to get all of them. Do you want click farmers sitting beside you?
The only issue with .us domain is that you cannot hide whois info, that's their policy.
 
I also suggest to pick the .biz domain name extension. The .org is only only good if you are running a site that is like a community and not for business purposes.
 
Go with the .org

I generally go with .com, then .net, then .org and avoid any other TLD if possible.

And keep in mind you can't use whoisguard with .us domains.