I'm trying to scale up my small software business. I have a proven product (an app for a niche market, client/server based, clients in the US, Canada, UK- but small sales numbers) that is ready to scale up in terms of sales and markets. I've been doing this on my own (no employees) for several years and am very limited as such. I don't need massive capital to build the company, probably about $250,000 (this includes funding to develop a web based version of the app). 

I don't have any personal contacts or related industry clients to work with on funding so I need to try to find it elsewhere. There are a lot of sites where you can list your business and business plan like equitynet.com or fundingpost.com. They charge to do this, of course. My question is, does anyone have any experience with this kind of listing, in terms of actually getting funding? They always make it sound rosy but I don't want to throw money away if it's not worth it. Any advice would be great- thanks.