For knowledgebase articles it is not uncommon to put images or even video on specific answers. Most of the articles we use have iamges associated to them. I think it would be great to have a document library specificly for images and/or videos that are displayed in KB Articles. In our industry, it isn't uncommon for our web site to be updated. When this happens, images need to be updated so the images are current and relevant. Many times, we'll get messages interally say "theres an out dated image on article... " Having a dedicated media library would help manage this workload.
In RightNow, there is already a library for uploading images used for the Analytics Console, I image this would be something similar to that.
A media library would allow all the images or video used to be hosted on the same server the KB articles are hosted and managed in the same tool. If hosting images is too much space, maybe this library could just capture the source ofthe image and generate a virtual library, displaying the URL where the image is actually hosted.
I imagine that a media library would have document control (who is allowed to upload files) and version control, so if an image is updated, it can replace the old file but there would still be access to all previous versions (like subversion or even sharepoint document libraries).
When an image is added to a KB article, the Media Library updates that item and records all articles that the image is displayed.
