Startup Idea : Share and keep your favorite links

Social networking tends to be short-lived. Great things you share get a number of likes / thumbs up and then fade away in the timeline. I would like a simple website to come as some kind of add-on to the social websites. Sharing on facebook would allow you to keep your link on this other website and add a category, tags... In order to find it again easily. In addition, your friends could see the way you order things, revealing what's important to you that they would miss on a short-lived post on facebook. Additional ideas would be : dead link detection, possibility to share a task to do, connection via facebook - google+ - twitter... I already implemented part of the solution here : www.everlynks.com ; I am looking for people that would like to see this website go further : someone who can build a business plan, get finances, advertize... some developer (2 would be fine to have something neat after maybe seven months) to go along. I would only be giving ideas and not taking any salary until it works out.