You know for a site like this with all the children at heart / parents / nerds / etc here, I don't think we've had a thread about Lego. So to that I devote this slice of the site to just that. Post about what you had a a kid, what you just got for yourself, and what you bought for your kid(s). My contribution is a site with a TON of manuals/building guides.
Also of course is the lego site
I'd be interested to also see thing you or you and your kids built. So post some pictures if you want!