Online comments maybe not total waste of time

Conversations on news sites show how information and ideas spread

There’s a science behind the comments on websites.

It’s actually quite predictable how much chatter a post on Slashdot or Wikipedia will attract, according to a new study of several websites with­ large user bases. And the thread of an online conversation — whether it sticks to the original topic or users comment on each other’s comments — can be modeled as a tree with discussions veering off on branches, researchers report online November 2 at arXiv.org.