Read/WriteWeb covers the impending launch of Twine.

(Founder) Nova Spivack has an illustrious history in the Semantic Web and AI business, having worked for both AI legend Ray Kurzweil and tech guru Danny Hillis (Thinking Machines). The genesis for Twine, said Spivack, came from an R&D project about 5 years ago, which turned into a research project, then a Series A round with Microsoft co-founder Paul Allen in 2006. As of now the Twine team is 30 people working from San Francisco — and they’re finally ready to unveil their new mainstream Semantic Web product.

The aim of Twine is to enable people to share knowledge and information. At first glance it is very much like Wikipedia, but there is a whole lot more smarts to the system. Spivack described it to me as “knowledge networking”- i.e. it aims to connect people with each other “for a purpose”. It’s not based around socializing, but to share and organize information you’re interested in. Using Twine, you can add content via wiki functionality (there are many post types), you can email content into the system, and “collect” something (as an object, e.g. a book object).

I’m signed up, will check it out and see if it’s all its cracked up to be.
I like that an export option is built in from the get-go.

EarlyStageVC has more.