In my last post, I wrote about a patent application describing how Yahoo might come out with a widget that could be used with blogs, to recommend old posts on those blogs based upon your lifestreaming activities.
It appears that Yahoo may have even grander and more financially motivated intentions behind collecting information about how you blog, tweet, tag images, and leave other footprints on the Web about your life and interests.
Imagine Yahoo crawling the Web and grabbing information from APIs and feeds published by other sites that provide information about the movies you rent, the reviews that you publish, the pictures that you tag, and the sites that you bookmark. Along with your tweets, your status updates, and your other activities on the Web, this information could be used to build a profile of your actions online.
That profile might then be used to determine which banner ads, job postings, and other advertisements that you may be shown.