It would be nice to have a simple option for all these actions. You could just bookmark a page and choose from a list of options:
* save content (you could save the entire page or just some clips)
* get updates (dynamically create gadgets by selecting some information from a page that is likely to change - weather, news; subscribe to feeds or to newsletters; get all the changes of a page)
* share with others
The bookmarking application could be integrated with your web history (that could be saved locally or online), could determine the web sites you visit frequently and automatically bookmark them. From your bookmarks and clips, you could create web pages and share them with other people.
The simple bookmarks could combine in a single interface Google Bookmarks, Shared Stuff, Google Notebook, Google Alerts, iGoogle, Dapper and other applications.