Considering the number of car accidents each year, it's not exactly surprising that flying cars haven't taken off yet. Most drivers can barely handle looking forward, backward and side to side -- and adding up and down is just going to make things worse. Still, the future promised us flying cars, so people are working on building flying cars. Here are just a few links on the topic of personal flying vehicles and some other ill-advised ideas.
If you'd like to read more awesome and interesting stuff, check out this unrelated (but not entirely random!) Techdirt post