I have various coins up for sale on GreatCollections.com and trying to locate places where I can help get the word out about my coins up for sale. Anyone know of good sites or message boards?
Well, this is one of the most active. PCGS message boards are also very active. Great Collections has a pretty big buying audience. If your coins are ordinary, they'll go for ordinary prices, maybe even below your expectation. If they are conditionally rare, you'll get fair value.
You also have to be very careful about what you say here in the regular sections of this forum. We have rather strict rules about mentioning items for sale in the regular sections, and we strictly enforce them. Given the nature of Great Collections, what you've said so far is fine, but much beyond what you have said here would be crossing the line. You are of course free to post about it in the ad sections - as Jim said, according to those rules.