They published some of their ‘proto’ product in their labs (which is accessible from public; http://labs.google.com). I suggest you should try igoogle (http://www.google.com/ig) the user interface is not that good yet, but they try to do some profiling and made the igoogle page the first page for all internet users.(If you are looking for a better user interface and work similarly, try http://www.netvibes.com). In igoogle you can add any gadgets you want (built by google or all google users using opensocial standards)

Their opensocial API will make all application build under their standard will work in other websites especially their affiliations.
I’ve tried to make (errrrr… ok.. take part of sample code and edit it.. hehee) and make a google gadget to feed passionland rss. By simply add this URL:
In your HTML page or if you want to add it in your igoogle, click add stuff, and use this URL: http://hosting.gmodules.com/ig/gadgets/file/103318680152483681460/gg_passionland_rss.xml

I suggest webdeveloper look into this deeper and join their community in google groups. Since this gadget can be easily added to all websites, I believe this can be a new media for advertisement.. imagine.. build 1 application that can be attached to all of websites………

cheers,
hiro
smallsimpleNOW