Now, here's an online business model that has unfortunately become the butt of far too many jokes. This is because a certain segment of society (that’s you, hipster!) went around loudly telling anyone willing to listen that they were full-time bloggers. The net result of all this misplaced enthusiasm is that if you tell any of your friends or family you're going to start a blogging business, they'll wrinkle their collective noses at you, while coughing politely.
Multi-vendor marketplaces, like ThemeForest, can be very successful. Chose a niche and create a vendor website for it. Your marketplace could be anything, from a platform for local artists to sell their work on, to an online digital product store. Once set up, invite people in that industry to sell their products on your site. You take a percentage of their profits when items sell.