My first ex was hard to avoid, we were both in the same circle of friends in high school, and he was dating my best friend's sister. I felt awful for about 6 months, and he felt awful because he knew he hurt me. Eventually we both got over it, we talk on facebook sometimes.
I dated a guy over the summer once, online. When I broke up with him, it got messy because he kept telling me how awful he felt, but refused to cut contact because he wanted me there to talk to, begged me to stay even if it hurt me. One day, I cut contact for him, he freaked out, started stalking me online, sending emails, one with a threat to kill himself. He did give up eventually. Yeah, never dating online again.
I guess it depends on how both of you take the breakup. I personally think cutting contact is the only way to get over it.
I agree, cutting all contact would prevent any long lost feelings from resurfacing, good or bad.
Mind you, she was the one who dumped me :S I was pretty bitter for awhile, but in the end it worked out for the best
TBH I'm not really interested in knowing what she's up to. I don't dwell on the past, I only look forward to the future!!!