Improving the discoverability of websites
It's OK, even encouraged that bots crawl the entire directory, and spread the content (websites, feed posts, etc.) elsewhere, as long as the original source remains referenced.
If you have a bot, on top of OPML and Atom feeds, you now have access to microformats, which is a way to annotate HTML with semantic tags. For example, this is what a bot can extract from the frontpage. I already use standard semantic HTML tags (ex:
article) as much as possible,
so microformats are an additional layer on top of that.
Another popular option is
schema.org, that I may
implement next.I'm not a SEO / bot-friendly expert so I'm all ears if you know better ways to make websites of this directory more discoverable.