[Jiggly]

I think the IM part is what is primarily used, and I would vote for cometchat or something similar. A lot of obscure services probably won't be used and may die out (as we've seen in the past when we tried IRC). SL used to use Skype back in the day, but I feel we had good reasons for moving elsewhere. It'll be frustrating using anything that isn't as clean and easy as Discord was/is. However, I am open to trying something new if it has good functions/features and is clean.