I'm particularly going through WDW withdrawal now because exactly one year ago TODAY, it was our last full day of the last trip we took down there. I sit and think about the park-hopping I did that day, trying to get in as many times as I could at the various rides and attractions that I most enjoyed. I took some time to ride the monorail loops around and just enjoy the scenery and also did some last-minute gift shopping.
When I get the withdrawal I usually watch videos of our last trip, view some of the ride videos I've downloaded, look at my WDW Explorer cd-rom, and try and find some of the better WDW sites on the net. WDWMagic is probably the best one on my list because of the constant updating. I've been to numerous sites that either haven't updated their pictures or information in over a year, or simply don't have very appealing sites. For example, I've been to the "OurLaughingPlace" Disney site and I'm just not overly impressed with it. And while MouseSavers doesn't have much to its site, it too is constantly updated with new information, particularly deals on resort stays, tickets, etc. I most enjoy the sites with tons of pictures and give reviews on every aspect of the World from resorts to parks to attractions to anything else.