Hey you guys. I honestly have very little understanding in what mining BTC is I know it evolves your gpu solving equations which will break blocks and in return will get you btc.

I was wondering what the best method for mining is if you don't have a strong CPU (I have a mac book air Processor 1.8 GHz intel core i5, Memory 4gb)? What are anti miners and other usb plugins? Is it easier to just invest in one of those shares sites?

Any other info you feel is important would help also.