After I have voted, it is indicated by the thumb icons going away. However, it is not clear which way I voted. I may want to change my vote. Should create an indicator of which way I voted and leave the other thumb in case I want to change.

Let me un-track any idea that I have asked to track.

Give me a profile management tool that lets me click on/off email notification for each idea I am tracking.

Add another link under the "Ideas" nav that links to all the ideas you are tracking. I may prefer to view the ones I am tracking there vs. having them emailed.

Allow me to track an idea without forcing it to be emailed to me. Perhaps I just want to be listed amongst the people who are following an idea for social reasons.

Users should be able to tag each other's ideas. This will help with the following
1. will bolster tagging for those who do not tag their own ideas
2. will allow for the fact that different people perceive different keywords
3. will take advantage of the "long tail" of a few people who will do a whole lot of tagging

Currently have to go to Home Page and then search. Not immediately apparent to novice users. Perhaps a global nav item for search or change "Home" to "Home/Search".

When the user starts typing keywords, there should be some AJAX code that looks into the database of keywords for that ideascale and presents a set of recommended keywords that match the characters entered.

See Facebook search for an example.

Ideally, there would be a number in parens after the keyword in the list to represent how many times that keyword has been used.

The benefits of this are
1. you don't make the user type so much
2. you help to bunch your ideas a bit into some keywords which makes tag clouds and browse by keyword work better.

Create a Tag Cloud for each ideascale and allow browsing by tag cloud where the user clicks on any word in the tag cloud to display all the tags for that cloud