Finding new investors online - is Craigslist the only option?

[Katelyn Convery]

Hi all, thanks in advance for your responses!

I'm a budding wholesaler working in Portland, Oregon. My partner and I have compiled what I would call an adequate list of investors who usually buy the properties we get under contract. But at times, they are all working on other projects, over-extended financially, and unable to snap up the deals we have coming in. 

I know the key is networking, networking, networking, but in a pinch, where do you go to find a new flipper/investor? I currently have a great fixer under contract and only a day left to sell it. Is Craigslist the only option? I don't love posting there because I have no idea if the people who reply are serious about buying and ready to move on an opportunity as quickly as you need to in this business. I've checked out the marketplace here on BiggerPockets, but all of the listings seem to be old. It doesn't look like much business is being done there... thanks for your suggestions!