I have two older sisters. My eldest sister is an extremely efficient search engine, like Google. Her talents lie in her resourcefulness. Ask her a question about anything, and she'll be able to find it. If she cannot find it herself (which is rare) she'll know exactly who to ask. She's a travel agent, a vacation planner, and job finder all in one. If you need something, she is definitely the person to ask, because she knows how to get all the information you need. If you are a Bourdieu person, she has much cultural and social capital!
My other sister is more like a site from the ICanHasCheezburger network. When she enters the room, she says "O HAI" and is always there with a piece of randomness to share - and she is always willing to share it with everyone! She is random, quirky, and popular. She is a social butterfly and enjoys meeting all kinds of new people wherever she goes. She is viral, like those LOLCats, EPIC FAILs, etc. as she involves herself with every person she gets in contact with. She'll pick up on what she think you'll like, and has something to make you laugh.
My parents are different. My Mom is a fiery ti piment as we say in Kreol, so I would say that she is a political opinion blog, with strongly worded critiques on current events. Despite her small size, she makes herself heard! She sticks by her beliefs and does not change her stance easily, asking many questions before either silencing you or finally acquiescing. She becomes impassioned very easily and can switch from sweet to spicy in a second!
My Dad, on the other hand, is totally FanFiction.net - if FanFiction.net weren't a horribly cheesy site with terrible, terrible writers. The reason I say this is because my Dad is one of the biggest fanboys of all time. From H. P. Lovecraft to J. R. R. Tolkien, my father loves a certain fictional universe and fixates on it like any true nerd would. He may not actually write fanfiction, but he is a display of his fandoms and obsessions. I would also say he is a Wikipedia only for the fact that his memory contains a lot of data about the weirdest of things, however his information is mostly based on the things that he loves.
So there you have it. My family, in terms of the internet. I thought and thought about what site I could be, and well, I think I am Twitter. I'm no wealth of information, nothing like that, nor do I spew what other people tell me, but I am just a person who enjoys listening and reading what others have to say or show me. I'm a receiver of information that may be forgotten tomorrow, but a few noteworthy things might remain in my memory. I also tend to speak in short bursts (haha). But, well, how would I know? Maybe you would be a better judge.