I'm seeing a lot of people here offering free services like a free Twitter blast to their tens of thousand of followers or a free SB blast. Now, kudos to these people who are really offering them with no strings attached. At least they're giving something back. However, we can't deny the fact that not all of them are doing it just to give something back to the community. It's possible that some of them are trying to steal niches. All I'm saying is, don't jump at every free stuff that's offered here. Check to see if you can trust the one offering the free service. At the very least, check if the free service is worth exposing your niche. Again, kudos to those offering free services just to give something back. Edited to add: Be careful as well with people telling you to PM your URL to them so they can "take a look" and offer "advice". This usually happens when someone, usually a newbie, is asking questions about his site.