I have to disagree. I like short, catchy .coms like nuffin. But if I owned nothing.com I wouldn't think about trading that for it. It's worth less than nothing, but surely sumfin for shur.
The most successful situation comedy that I know of is Seinfeld, "a show about nothing", so maybe "a site about nuffin"-- in other words anything that is ignored or thought of as not being worthy of casual thought, much less note, by most of society-- until you point it out.