I can't help wondering why more webcomics don't have permalinks for the current strip. They seem quite rare, but they strike me as filling a pretty clear need. Without them there aren't any really user-friendly ways of linking to an interesting current episode from a blog or forum, and so comics are bound to lose some potential inlinks and readers. Achewood provides them, but I can't think of any others offhand. I'm wondering if there's any technical reason they're not provided more.