What’s the cost of buying users from Facebook and 13 other ad networks? Ifeadi C. 00:49 TechCrunch, Zero Tech Blog Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsE-scooter startup Bird is raising another $300MThis extra-large handheld Nintendo works (and feels) like the real thingTwitter and NBA game streaming deal is about connecting with cord-cutters and younger fansThe state of seedDon’t expect a new Nvidia Shield Tablet anytime soonHalo’s second-gen brain stimulating headphones run $399