wikis ad search engines optimisation

Just had a look at http://www.ruyakunst.com/ this morning - very neat, clean. Even if Wikis have still this "techy" edge, it really improves usability and the way people can browse information in a non linear fashion.

Tags have been around for a while now, and this wiki demonstrates all the power of tags, and how they can help structuring dynamically the information in a way it is easier to browse and find what you are looking for.

But the issue here is that most of it is handled by Javascript - dynamic hyperlinks generated from the Tags manager are embedeed in Javascript, and all the nice looking browsing experience becomes completely invisible to search engines.

One of best SEO practice is to cross links within the site:
if I have got "widget" on my page, linking to the "widget" page, it will definitely help my ranking for the keyword "widget" (on site linking is about as important as offsite linking!).

No doubt we will see more and more tags systems integrating with each others, and hiding offsites links exactely the same way as onsite links are currently hidden.

what does it mean in terms of search engines optimisation?
1) Sceptical approach: Google etc .. will keep the same type of algorythm for a while, and optimising for new generation wikis will soon become the same issue as optimising for flash sites.
2) Open minded approach: Google and co may already look into a way to identify tags (relying for instance on "authority" tags portal and put a new system together to take them into account. I think that this is something to look into more in details if you are serious about search engines optimisation, and want to keep ahead of the game.