All the social sites have different features like wall, friends, gallery, work experience etc etc. Which one you find most useful as a professional?
Agree, I think your niche will determine the best method for posting. I have experienced different groups of people react to different methods.
as an FB member, the feature of finding friends is very useful.. i get to get in touch with my friends whom i haven't been in contact with for soooo many years.. it's just a matter of typing their full names or last names and we get results, provided if he/she is also an FB member. But either way, it's still helpful..
I like FB chat alot, I don't use social networking for work anymore tho, I always use instant messaging.
anything that lets you aggregate. but mine: RSS feeds. and pipes.... so nasty. wikipedia.org/wiki/Social_network_aggregation