Some worthy construction marketing ideas

Take a look at the forums at remodelcrazy.com and contractortalk.com.  You'll find a wealth of useful resources and peer-based idea sharing there especially if you are in the residential/consumer markets.

In the business-to-business space, you can of course consider linkedin.com and the many groups there including our own Construction Marketing Ideas group. (It is closed group, so you will either have to be invited or request to participate.)

Finally, of course, you go to the "other" Construction Marketing Ideas blog for some additional resources, blog listings and the like.