Kimberly, I hope you were able to get your email & social networking accounts straightened out and back in your hands. Keep your antivirus up to date, use a firewall (like Comodo), use strong passwords (and a different one for each site so that if one is compromised, all of your online accounts aren't open and vulnerable at the same time), use a good browser (Firefox, Chrome, Opera), use discernment in what you click online and what you download and install.