A lot of visitors find this site when they're searching for information on Ph.D. programs in business (there doesn't seem to be all that much easily findable and usable information out here on the topic). So, I try to post resources on the topic whenever I find them.
While web-surfing the other day, I came across another one - Testmagic.com. While their bread and butter seems to be test preparation for standardized tests like the SAT, GMAT, and GRE, they also have a couple of forums that might be of interest if you're considering a Ph.D. in business or econ.
Here's a link to the forum for those considering a Ph.D in Business and here's one for those looking at a Ph.D. in Economics.
A lot of the posters on the Business forum have GMAT scores north of 740 or so, so the discussions seem to be geared towards candidates trying for admission to "top-tier" programs. But even if your aspirations are more modest, there's still a lot of information that's useful.
update: Welcome to all the folks who stopped over from TestMagic - I'm glad you stopped by, and I hope you find it useful. You can find the Financial Rounds FAQ here, and a couple pieces I've written about the teaching and research sides of a finance professor's life here and here.