I may be a tad bit out of date, but I found out yesterday that it is possible to host Google Gadgets on your own web site.
Google has provided hosting for custom built gadgets for some time, just as Microsoft has. However, as far as I am aware, I know not of any easy way to host Windows Live Web Gadgets on your web site like those of Google. Come on Microsoft! It's not hard, do not force users to use Live.com to make use of the vast array of gadgets in your collection.
All that is needed now is some enterprising person to invent a mechanism to host both Google gadgets and Microsoft Live gadgets on either Google.com, Live.com, or third-party web sites - Web based gadgets are just images, JavaScript and a bit of XML glue after all.
Check out the gallery of Google gadgets that work with your website here.