Improve UI for inviting people to collaborate on your Wiki ..
The first thing you want to do once you create a Wiki is to invite people to collaborate with you. I am sure that capability exists but the UI should be intuitive enough to help you find that in the first 5 minutes after you have created the Wiki. It has been 5 minutes since I have created my Wiki and I still dont know how to invite others :-(
Anil
P.S. Zoho Wiki is great otherwise based on my first impressions. :-)