Found two sites that offer to share the mining pool. All I need is to sign in and leave the website on while the mining's in progress:
http://www.bitcoinplus.com/generatehttps://50btc.com/Just need to hear everyone's thoughts on this if whether or not I should sign up to earn BitCoins since I'm using an old PC (still runs on Windows XP).
You need to learn more about mining.
The first site (
http://www.bitcoinplus.com) mines bitcoins in your browser using Java (if it is not a trojan). That is no longer feasible. It hasn't been for a couple years. You will spend much more money on electricity than you will ever mine on this site. On average, you will earn less than a penny a day from this site.
The second site (
https://50btc.com/) is a well-known mining pool. You can connect you mining software (something like cgminer) to this site and mine with your GPU, but most people mine with ASIC miners now. Mining with your GPU will earn less than $0.10 per day on average.