Totally agree that Octopress is a great approval of how Jekyll is awesome. But I'm saying from my point of view, when I first tried Jekyll, and tried to link information about Jekyll with what I saw in Octopress it was not that useful. :D That's why I believe we should put a link to Octopress website, so that newbies can see what Jekyll can be (Octopress has documentation and so on). But you must admit when newbie come he might not know about Octopress at all, so looking at sources of Octopress based website will only confuse him if he will don't get basic information about Octopress before.

TL;DR

- I think this should be a list of Jekyll based websites only.
- There should be a link to Octopress, as an example of a real "beast".
- Octopress based blog examples should be listed on Octopress website, not here.