when creating my last suggestion (report button for the website) I realized that we need some tags to help search. Many other sites do this and I thought it would be a great addition to the site.
(this was suggested somewhere else but was also coupled with a request for a site name change. I believe this deserves its own suggestion. And I didn't want to change the site name ^_^)
Edit: Added website suggestion category.
Add a "Tags" box similar to youtube's tags. Possibly come up with common tags and display these tags when adding to a submission or searching. Somewhat similar when using firefox's web search box.
This will be fixed when the website is migrated to use the Here's an idea system.