In simplest terms, the Internet represents a new way for people to communicate, but it accomplishes this so differently than other communication media that scientific examination is required. Behaviors already present in society, such as bullying, friendship, and romances can take new forms online, which is why the Society for Personality and Social Psychology met recently to share the latest research results.
Potentially the most interesting of the topics discussed was online bullying, which does seem to be a different beast than what some of us may have experienced years ago. Researchers have found that instead of the outcasts of a school being targeted for bullying, it is often the popular students being harassed, and typically by friends or former friends. This former relationship allows the bully to target their attacks for maximum harm.
Another interesting correlation the researchers found concerned how what we reveal online affects our relationships. Researchers found that by disclosing more personal information online, we lessen intimacy and satisfaction with our romantic partners. This correlation was dependent on whether the information shared concerned the partner. Also the correlation was not present for friendships.
There is a fair bit more at the source link, so if you find this interesting, be sure to check it out.