I have used them with mixed reviews..... it sometimes seems to be as much as you want to put in you will get back ......
I've done it and it was pretty dull. Then again, it WAS something to do when I was ansy and bored. It helps if you actually know the people in the group, then it can be a lot more fun.
What I found more distracting is I started up a "story-line" gaming style group at one point. This is something I used to do with friends back pre-internet when they had BBS's. It's essentially based on D&D type gaming, but free form and on-line in chat mode.
I'd created a world & NPC's (non player characters) and the on-line people each had assigned characters they played and reacted with the other NPC's.
Hey, any way you can spend some time not being bored and obsessive is a fun one. :-)
I didnt know they had them online. Do you just google it? sara