Windows/Mac/Linux (Firefox): Keep track of your daily to-read list with the Read it Later Firefox extension. Similar to previously mentioned Readeroo—which integrates directly with Del.icio.us—Read it Later takes a slightly different approach, keeping your reading list local until you read it and decide whether or not you want to bookmark it. If you do, you have the option to bookmark on any number of popular bookmarking sites, from Del.icio.us to Digg. The drawback is that Read it Later doesn’t currently sync across browsers, which would be a nice touch. Read it Later is free, works wherever Firefox does.
Another great extension for Firefox.
