This is where Trunk.ly comes to the rescue. Create yourself an account and link it to any RSS feeds that you want, your Twitter Account, Facebook, Delicious. The engine will then collect all of your links and make them searchable. But there's more! It also will index the pages that the links point to, so in effect you're creating your own search engine of useful pages on the fly, without any real difficulty at all. Oh yes, I'm going to enjoy this product a lot. And... there's still more! I can do all of that, and search stuff from friends who have joined the system. And... and.. AND.... I can limit to video, image or place.
Firefox also recognises Trunk.ly as a search engine, so you can add it to your collection.
This is going to be tremendously useful. If you want to take a peek at it, my page is at http://www.trunk.ly/Philbradley/ If you create an account yourself, feel free to add me and I'll return the favour.