Below are a few ideas which I feel would add real value by increasing the speed at which users can locate relevant content from their search and reduce the time it takes for them to find what they are after.
1. When displaying search results it would be very useful to be able to see a preview of the content by perhaps clicking a more button and displaying the full HTML insert like you do in the Activity Stream.
2. Alternatively this could be achieve by doing something like what Google does with a fly out on the right hand side or like you do already in the Jive 5 communications page
3. It walk also be very useful to bring a preview feature into the Spotlight Search similar to how Apple does it in OSX