The awesomeness of davesgarden.com - already pretty high in my books thanks to their endlessly informative PlantFiles, which allow site users to post reviews and experiences with various plants - is made all the more impressive by their Garden Watchdog, which has users rate mail-order companies. People left rave reviews for Lindenberg Seeds, for instance, whose somewhat discombobulated website and black-and-white print catalogue I would have completely overlooked. Apparently, however, they have kick-ass plants for rock-bottom prices - three cannas for $4??? Sign me up!