The web is such a monolith of information, it's often difficult to find new sites of interest. Here's two that I've discovered and recently enjoyed.
First is a great blog for all you avid gardeners: Garden Rant. I just posted a comment on Allan Armitage's blog re native plants this morning.
Another is the GardenWeb Forums. I check the Perennials section almost on a daily basis. It's full of good, simple information from, and exchanges between, mostly every-day gardeners (from across North America).
Here's to dirt under your nails.