I have a problem with seeing too many interesting pages and bookmarking them to look at later. I end up with way too many bookmarks to ever get through. Ideally I want to institute a 'one in, one out' policy for bookmarking, so that to add a new bookmark I have to delete an existing one. Are there any extensions for Chrome that do anything like this?
Rockmelt actually has this function in it as a View Later tab you could possibly get some code or where to start from their source. Rockmelt uses Chromium as a base, not sure how the tab is implemented though but it does exactly what you want.