Great site to find stuff to do. Make sure to put in your zip or select your state. http://www.familydaysoutusa.com/
REPOST: From Nat GEO I found the following:
Family Vacation Critic: I became a member of this site which sends out frequent news alerts on developments in family travel. This extension of the successful CruiseCritic.com is still in its Beta stage, so the information library is still developing. It’s easily one of the more polished and professional looking sites, but it also comes across as very commercial, especially biased towards Disney World and Orlando.
The Family Travel Files: This site certainly has a ton of content and some valuable information, especially if you know what you’re looking for. If you don’t or you’re just after some ideas or advice, things get a lot more difficult to disseminate.
TripAdvisor’s Inspiration Page: Even though it doesn’t go into great detail or a long narrative about the destinations they preview, their list is broad and intriguing (including places like Copenhagen and Nashville) and includes easy-to-navigate special deals, things to do, restaurant recommendations and their hallmark, reviews you can trust. Ultimately, this “old reliable” site is probably the most helpful, but could do a better job customizing this section specifically for parents traveling with children.
Sherman’s Travel: If you’re surfing the web to hunt down travel bargains (much easier said than done), one of the best sites out there was founded by James Sherman in 2002. With over 3.2 million subscribers, it’s hard to keep good values a secret for too long, but at least the search is made simple. There’s not a whole lot of fluff here and their Family Vacation Blog is one of the better ones I’ve come across.