The Kauffmann Foundation is know for being the most active non-for-profit funding entrepreneurial activities, studies and projects. They have rolled out a resource site for entrepreneurs called eVenturing
. This site has a collection of resources from aggregated blogs to surveys to "how to" reports on HR, marketing, finance and other core areas key to entrepreneurs. Lot of stuff on this site, so you will have to cut through it to find what is relevant to you, but I was impressed with what they had put up there. You can also subscribe to different feeds including different "perspective" pieces from leading entrepreneurs.
Definitely worth a look…click on the link above.