I checked out a site by Miracle-Gro and Home Depot called Gardenieres. It is full of video gardening tips and tricks for every area of the country. I found the Containers 101 video very helpful and informative.
A tip to keep your pansies and mums blooming is to dead head old flowers. This means to simply pinch off old, spent blooms. It will also keep your pansies from getting too leggy as the season progresses.