There are only four ways to make money with a domain name:
- Sell it
- Rent it or Lease it
- Park it
- Build it out
You’ve already tried the parking route, and I suspect that you’re not even covering your reg fees, eh?
You could clearly sell the domain names, but I suspect that you want to keep your assets and add value to them.
Renting or leasing are great options, but you have a lot of domain names and without the traffic on a domain name (to rent) or a fantastic domain name that someone else wants at any cost (to lease), you’re stuck. However, if you can do these, go for it because it only increases the value of the domain name while bringing in revenue.
Building out is probably your best choice. You could go with a content site, directory, or blog. The problem that I have in providing advice is that I have no idea what kind of domain names you have. They could be premium to you, but nobody else (no offense). Or they could be something like girls.com or onlinetraining.com. Without knowing the domain name types, I cannot recommend how to build them out. Feel free to post a comment and clarify if you want my input, which I’m happy to provide.
Also, since you have 725 domains, most are probably marginal and a handful are probably your best. Develop out your best first. How to pick one from the 5 best? What are you most passionate about? If you were to start developing out one topic, which would you continue to do for a year without generating any revenue. That’s the one you want. Go for it. The revenue will come if you truly are passionate about the topic.