After being acquired by Google, JotSpot was pretty low-profile. Now there's a new JotSpot help center hosted at Google.com and a new JotSpot group. From the help files:
"Now that Google has acquired JotSpot, all accounts are free. In addition, all accounts have been upgraded to unlimited users and unlimited pages."
Reading some questions from the help center gives you the impression that there's no integration between JotSpot's wikis and Google's products. There also funny texts like:
"Yes, JotSpot does support Apple Mac computers. For the most part, JotSpot will work with Safari. Because we do not test with Safari, JotSpot does not officially support it."
{ Thanks, Óscar Silván. }
