I have an account in both Myspace and Facebook. But there are big differences between the two websites.
With Myspace I don't reveal my name (as with Realjock) therefore I keep my profile public. The "friends" I have on this account are strangers I have never met, although I have one true friend on it as well. These "friends" are mostly bands who wish to promote their albums after failing to sign up with a record company. Remaining anonymous, I don't believe that whoever links up with me poses a threat. Another feature on Myspace is the blogging facility. Here I like to express my thoughts on certain issues, for example, how I feel about snow, my experience in hosteling, and does God know of, or even aware of, Yahoo or Hotmail. I have found it surprising how many people had read my blogs, as the number is recorded on the Manage Blog panel, as with the total number of views to both my profile and photo albums. And now Myspace has introduced a facility to download to my profile music videos from its own site, although stocks here seem to be limited, unlike Youtube.
In Facebook, my real name is revealed, so I have set up my account on private, and only friends who I know personally has access to it. The good thing with the internet is that all friends linked to me at Facebook also has access to Myspace profile and blogs, by means of a one-way link I have provided for them.
There is no link from Myspace to Facebook.
I find that both websites have their own advantages.