I have been actively engaging with a wide variety of social sites. Some I have been using for a while, and others I am just starting with. Here are a few of my social coordinates as of 7/3:
Facebook – This is the newest latest for me.
Collective X – Join my network for ROI Radio.
Twitter – Good stuff.
LinkedIn – Been here forever.
del.icio.us – my social bookmarks.
Flickr – my photos.
Stumbleupon - I am just starting with this and dig it.
Hyves – social network based in Amsterdam
Digg – Always been a reader, but not a participant, til now