The creation of a copy by an individual, for personal use (probably) falls under fair use. I say probably because fair use is not very clearly defined.
However, what is clearly defined is the exclusive right of the copyright holder to distribute the information. As soon as those "for personal use" cards are posted on a public website, you are distributing that copywritten information. That is a violation of the copyright. And since 1997's NET act, such distribution can even be a criminal act if in sufficient quantities.
edit: This is, of course, assuming that the powers which the cards represent are from WotC's published and copywritten books, and not new powers written by the card creator.
Hmm,
I wonder if this might affect publishers who produce books with power cards based on new content.
One would think it's OK to do so, but if WOTC determines it's an infringement on their design... hmmm.
Maybe I should rethink publishing power cards with my first 4e supplement.
Time to talk to my lawyer.
Yes, you should talk to your lawyer.
But I'm pretty sure printing blank power cards or power cards with non-WotC powers on them is okay. It's offering power cards with WotC power info on them that is the problem and is also clearly an IP violation.
They were complete powercards based upon the PHB. It had a rather neat functionality: You could "build" a deck of power cards by selecting just the ones you needed. The site would then generate a document that would allow you to print out the power cards you had specifically selected.
I am neither approving or condemning, but as far as design, layout, and function, it was a pretty neat site.
Why should WotC allow some fan who didn't do his homework to create a site (or product) that directly competes with their online offerings (Charcter Builder) and print offerings (this spring's power card decks) using their own IP? Expecting them to allow that kind of crap for "public relations" or as a "fan service" is just ridiculous IMO.