Two or three degrees of separation?

So recently I've been reading through the archives of Bête de Jour as recommended by Dave a while back. On one particular post I read through all the comments. First up I noticed a comment from Penelope who is a reader of Delmer who is a reader of Dave's. So not hugely surprising (since Penelope reads Dave's too). But much more surprising was seeing a comment from Suburban Hen. Surprising because I've never linked there, and yet she is there. So she would have found another path there. SH linked to some Javaira's recent posts and this morning I was reading "Patricia's" responses to them. It still spins me out how things people say on their blogs end up half way round the world touching other people's lives.

They say everyone is linked to everyone else on the planet by "six degrees of separation". I reckon it'd be much much less in the blogosphere..