We’re big fans of technology here at Yahoo Tech. (OK, I admit it, we’re geeks.) But there are some technologies that even we would like to see sleeping with the fishes. Some of them are things that once were innovative but now are endless time-sucks. (Email, we’re talking to you.) Others are security nightmares waiting to happen. (Adobe Flash, please come to the nearest white courtesy phone.) Most create more problems than they solve, and it’s high time we were rid of them. Here are a dozen of the worst.