I Love italki. I've learned a lot from a bunch of great people. Here, I'm making a few suggestions for new features that could be added to italki to make it even better. Let me know what you think.
1) A bookmark feature - to add favorite discussions, users, posts into a drop down list like the messages list in the upper right. This way pages that you frequent would be easily accessible.
2) Trending feature - in addition to making a list of most recently changed items in a category such as discussions, questions and answers, or notebook entries, provide a list of those items that are trending, reflecting the most popular with the most responses. Some items are meant to be kept alive!
Do you have features you think would add to the italki website? What are they?