A few months ago I deployed my StockQuote Google Gadget, which is used for retrieving stock quotes and daily price graphs.

Behind the gadget is a remote .NET/C# service I created which scrapes stock quotes and charts from Google Finance.

You can see it and play with the demo: cgoldberg.googlepages.com

- Add my gadget to your Google Personalized Homepage
- Add my gadget to your own web page

I have been logging usage stats; just to see how many people are using it and how many transactions it is doing. Stats have been collected for about 4 months:

12000 transactions per day and growing fast.. yikes.

Update: My StockQuote gadget is no longer in service.  I Received a takedown notice from Google Finance on 05/23/2007.   umm...  sorta saw that comin' :)