Check out what’s clicking on FoxBusiness.com. Small companies today face a problem almost as unknown as some of the firms themselves—the exchanges designed to take them public often keep them in the shadows. Currently, these more modest firms—known as small-caps—have to list on the same stock exchanges as the Fortune 500 when they go public, so bigger competitors often eclipse them when they vie for investor attention. The Main Street Growth Act would make stock exchanges better at doing what they do best by creating venture exchanges specifically for smaller companies and the people looking to invest in them. The option of hosting smaller firms on their own exchanges would…