I also find it difficult when sites like LinkedIn or Facebook want you to categorize your relationship, especially when that relationship is in its infancy. It

I also find it difficult when sites like LinkedIn or Facebook want you to categorize your relationship, especially when that relationship is in its infancy. It seems a bit presumptuous to say "I've done business with X" when I just met them, even in a business context. I think it would be interesting if social sites and social graphs let you somehow define the quality of the relationship (each side could rate it and neither could see the other's rating). I'd like to see my strongest links to other people - even if it's not necessarily the shortest path.