Investing in private companies online is a brand new experience for most investors. Luckily, my co-founder, Andy Gordon, and I have been doing this for a while. And we know the established players in the space. For now, we’re going to highlight the top three equity crowdfunding “portals” where you can find and make investments. These portals are sites where you can invest in equity crowdfunding offerings. And the ones listed below are all companies we know. They charge reasonable…