I am looking for a filtered daily list of domain backorder ideas. I know a couple of guys post lists here, but it is summer vacation in a lot of places. I am willing to pay a fee for these lists. PM me if interested.
I come across a fair amount of dropped domains, when I see some that may be of value, I sometimes post here: domaindp.com where you can sign up for email email feed. I do notice that many of the domains I post end up registered again.
There is a website www. auctions. rajdomains. com (sorry cant post website link on comment, so you have to copy and past it manually) they update backorder lists, auction lists, available domains lists, expired domain lists and many other lists too. The the good thing is its free. You should check it out, i hope this will solve your problem.
From my experience, DropCatch and SnapNames (ie networksolutions) BigRock and Phenix catches 99.99% of the dropping 4L.coms. they have a combined total of 1600+- registrars working with them to make sure they catch. If you want a dropping 4L.com they are your best chances.