Years ago delicio.us revolutionized bookmarking with the use of tags. For some reason, an idea this simple wasn’t adopted by Google when they developed the whole +1 philosophy. Which is too bad for +1s.
It’s POTENTIALLY a great bookmarking tool. Unfortunately, the way it works now, everything you +1 gets gunked together into one great big ball of weblink. If they were tagged, you could make a beeline to each link you saved there, anytime you needed it.
If a pop-out was added for anytime someone +1′d something, they could put in a few simple tags to denote why the link is important.
People could also share lists of content this way. It wouldn’t be unlike a collection of YouTube favorites, except I could do it with everything.
Also, advertisers could preload tags onto them, more as suggestions to anyone +1-ing, say, a paid search landing page. Include a “clear all” link so they can be wiped off the +1 if the user doesn’t like what the webmaster put on there, and it removes the impetus to spam.
Google, this should be an easy thing to implement! It’s the kind of product that would give people a reason to stay logged into Google, and using Google Plus.
Please, please, please update the +1 structure with tags. I’ll be your best friend, I swear. :)