Bitcoin is in the news lately, and a lot of people are dismissing the ability to casually mine due to the high difficuly and power cost. However if you want to get in on some casual bitcoin mining with your GPU, it's not too late! The secret is to mine Litecoin and convert it later.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips