What is the best online resource for finding homes for sale nationwide?

I am a real estate investor, and am looking for a site like Realtor.com, but that offers e-mail updates of properties that match my buying criteria.What is the best online resource for finding homes for sale nationwide?
in canada it is mls.ca





But your best bet is to built a network of people you want to work with in your own area and one of these people should be an agent that is willing to go to bat for you,





they can likely search and set up automated searcehs for you that will send you properties by email, keep in mind that you will have to set some parameter on what it is that you are looking for, and asking for all the good deals, is not possible..





In my little town of Victoria BC canada, we get well over 100 new and or updated listings each and everyday, just imagine the number of listings that are entered all over the continent, ther is no way that you can determine what is a good deal with out spending time on each property, individually, so it is up to you to determine what exactly it is that fits your specific criteria, and locations, then it may be possible to create some sort of raw search that will send you a lot of duds, and very few golden nuggets, but that is part of the process.





But with patience, and most importantly a great network of likeminded people you can find the nuggets and do your thing





Good LuckWhat is the best online resource for finding homes for sale nationwide?
I work with this, what area?
http://www.real-estate-listing-mls.com/


http://www.househunt.com/


http://www.realestate.com/
MLS.com
Rent.com