I got an email recently from someone who started a FREE website for pilots. It shows mostly restaurants right now, but looks like they have plans to add all kinds of stuff including fly-ins. Its better organized than other sites because it uses maps to show where things are located with respect to your home airport. You can change your flying range to see everything within an easy flight of you. Pretty cool concept. It also has the best airport directory I have seen, again listing airports on the map so you can easily see where they are before you drill into their details. And its free with no ads! Finally somebody developed a better way than a blog to to share pilot hotspots! Check it out.
Here's the link. http://www.onetankflights.com