I have a few things that might have already been said, might not have. But you know, late night. XD
1. Tag and link various CC.
CC can be tagged with a small series of boxes. Check "Custom content" box when saving an item on the gallery, then once checked, a small series of text boxes can allow us to post urls (or even shortened urls) that will be able to be copied. Kinda like a spoiler tag on the forums, you can click the CC marked "Dress" and it show the link below where they can copy and paste it in their browser. I would suggest using a copy and paste method to avoid the whole being blamed for viruses and stuff. And a warning in red of course that says "This object contains CC not approved by EA."
2. Small tag under username.
A small tag under the username can let people post a link to their CC website (in text form) or their name. The downfall to this would be monitoring the tags to make sure that they are EA appropriate.
3. Asterisks on CC content thumbnails.
This could also be a filter. Such as Sims 2 and Sims 3, we could tell what was not EA created and downloaded from another source. In this game, it would make sense to have a filter in the gallery (and in CAS) that let's us see the content easier so that when uploading/downloading to the gallery, we can know for certain there is CC instead of relying on the person that posted the sim/lot/room upto remember to put a hashtag on it.
4. Host an EA CC site.
I know this is farfetched and unlikely, but if you'd like to integrate with the CC community, the easiest way would be to directly attach the origin id to a CC site of EA's monitoring. As I know, EA has taken a stance against approving and monitoring any outside CC. But it's a suggestion nonetheless. =)
