This is a well researched post describing the evolution of bookmarking into the different types of tagging that exist now.  As I have said before I remain convinced we can use tags in a useful and meaningful way for banks and our customers.

Summary:  There are many different approaches to bookmarking and recent changes in web browsers, add-ons, and a web of participation will continue to fuel growth in the sector. There’s still a lot of work to be done in terms of search and service integration and creating compelling reasons to generate useful content, connecting users with the information they care about.

Source: Bookmarking and social sharing trends

Here is a summary of the types discussed in the post.

• Local bookmarks
• Live bookmarks
• Bookmark clusters
• Synchronized bookmarks
• Bookmarking in public
• Bookmarking for another individual
• Bookmarking for an affinity group
• Shared collections
• Additional data collection and display
• Frequently visited non bookmarks
• Bookmark search