Tech Writing 2.0 - The impact of Web 2.0 on technical illustration

What will be the impact of Web 2.0 on technical illustration?
The answer lies, perhaps, in "tagging", "mashups" and photo sharing.

Wikipedia's definitions may help you. Tags are "descriptors that individuals assign to objects, in the practice of collaborative categorization", and a mashup is "a website or web application that seamlessly combines content from more than one source into an integrated experience".

One possible mashup is between an image tagging site such as Flikr and your technical illustrations. This would enable your users to label diagrams and parts of diagrams using words (or language) of their choosing.

At the moment, the biggest problem is how to tag particular areas of a diagram (to be called "segmented tagging" or "hotspot tagging" perhaps?), but that's unlikely to be a showstopper.