PBwiki has offered the ability to wikify web pages with embedded wiki functionality for over a year. As our founder and CEO David Weekly noted in March:

“PBwiki can let you inline both private and public data server-side as well with just a line or two of PHP. Check “Server-Side Inlining” at the bottom of http://api.pbwiki.com/

PBwiki still takes care of hosting the data and the editor; particularly useful if you’re just server-side republishing one or two pages of an otherwise very private wiki and you don’t need to worry about accidental exposure. But you get the SEO benefit of having the content inline. (To be clear, this is not a new feature announcement – this has all been working for well over a year.)”

It's not surprising that this fact was overlooked, however. PBwiki hasn't made its wikilet functionality a major emphasis. I suspect that this reflects the different focuses of the two companies. Wetpaint is focused on public collaboration, mainly for consumer-facing sites and wikis; PBwiki is focused on private collaboration, mainly for internal business processes.

I think Wetpaint injected is a good idea (after all, I came up with PBwiki's wikilet concept a couple of years back, while I was still just an investor in the company), and hope that it helps spread wikification further into the mainstream.