Besides Ancestry.com, I like www.deathindexes.com
, which shows what death records are available online, and whether the site is fee-based or free. At the bottom of that site is a small link that says "Genealogy Resources" or something. That links to another site with the same info for online B-M-D.
Cyndi's List and Linkpendium ("card catalogs" to genealogy sites on the Internet);
RootsWeb through Ancestry.com;
GenWeb sites for each state or county I'm interested in(free to use; often have indexes online, or links to local societies and libraries).
I have subscriptions to GenealogyBank.com for obits (many are there but certainly not all)- ditto NewspaperArchives.com. I have a Footnote subscription and although it has given me a few things I wouldn't have found elsewhere, I've had less luck with that, and find it cumbersome to use.
Check your local library to see what databases they offer. Here in the Chicago suburbs, our library system gets the Chicago Tribune Historical Archive through NewsBank.com. People in Los Angeles, for instance, may get access to the LA Times archives, etc. Also, many genealogical societies subscribe to fee-based databases, and offer access to their members as a perk of membership. You may want to join a group solely for that purpose... shop around! Hope this is what you're looking for.