Just wanted to say this:
I don't understand why some people feel the need to thank everyone that retweets something they said or shared on twitter.
The other day someone said thank you for retweeting a link they posted. The thing was, it wasn't a link to something they had wrote, it was just something they had shared because it was interesting. This wasn't the first time this has happened either and I just don't see the point.
I post links on twitter because I thought something was interesting and I wanted others to see it. If someone retweets it than that's awesome, more people will see it and probably think it's interesting too. That's what I put it there for.
I'll thank someone if I put up a personal request like "I'm looking for info on ...." and someone on my list who may not know the answer will retweet it. They just did me a personal favour and I'll thank them for that. I just don't (usually) see retweeting a link I posted as a real favour.
Some people will say it helps to build relationships, but if you want to do that with me I'd rather we engaged and talked about whatever it was I just posted. That would help build a relationship with me.
But thank you to anyone who ever has or will retweet something I post.
That's just my personal thought on that.