I own 20, but only 8 are established websites! RCO, from your 300 domains, how many established you have !? just curious... good luck
It was around 100, I had a clear-out last month and am down to about 30 now. New years resolution is not to buy anymore until I finish the sites I'm working on.
~ 75. most of which are either really crappy sites or not developed yet. I don't buy domains for flipping.
Last week I had only 30. Today I have 300+ domains. Sadly I have no time to develop them all... I am parking them by now (but without links back it's wothless).
I have 15 active and about 30 alltogether and it's a lot of work I am curious to know how you get organized to manage numerous sites for operations that are difficult to automate (forum posting, writing original articles, writing relevant comments on blogs, selective link building...)