answer:Naturally, I’m going to go with Fluther. Positive uses: Getting an answer to a time-sensitive question. Learning new things. Helping others in several ways. Spreading knowledge. Negative uses: Um, what? No, ok, I’ll be serious. Some people find it quite addictive, and may spend too much time here. Ways to overcome productivity loss: Use it as a reward. After you’ve addressed the pressing matters on the site, take a break and complete a task. Reward yourself for a job well done by spending some more time fluthering. Lather, rinse, repeat.