With the announcement (from CNET via The Shifted Librarian) that Amazon services will be available within Microsoft Word, we can infer some interesting things about the future of video editing, as well as the possibilities of video blogging. From the article:

A writer who's typing a bibliography in a Word document, for example, could click on the name of a book to get catalog information or cover art from Amazon.

Just as a writer using Microsoft Word has access to Amazon's hosted library of relevant metadata, users of video editing applications should have easy access to hosted metadata repositories. For example, I'm editing a short video about striking workers and labor activity over the past 20 years in the United States. A shot of a union member, that I have titled with the appropriate text name of the union, could connect me into libraries of relevant movies, TV shows, interviews, stock footage, contacts, and so on... It amazes me that even the most sophisticated newsroom editing systems today, at the BBC and CNN for example, do not have this type of functionality.

In regards to video blogging, as I have mentioned previously, there are a world of applications and services that need to exist before video blogging is possible. One of these services are metadata repositories that connect users to video that can be freely repurposed and references (via proxies), as well as purchased/licensed for commercial use.