EBay's site sharing and discovery service StumbleUpon released a new way to "stumble" sites without installing its toolbar. Users that are not logged in see something that appears like a toolbar whenever they follow a link from a StumbleUpon tag page. The idea, it seems, is to turn more informal browsers into hard-core stumblers.
The new toolbar-less toolbar is not meant to replace the way StumbleUpon users currently use the site. The toolbars currently in use will still work and is likely to be promoted by StumbleUpon. At least in the current version of this new tool, not all of the features are available. You can click the "Stumble" button as many times as you want, but once you give something a thumbs up, you instead get a message to join the site and install the toolbar.
StumbleUpon could likely make a fully functional version of the toolbar without requiring an installation. The "demo" version, as they're calling this, runs off of a stumbleupon.com URL using an iframe for the stumbled site. See an example of stumbling Webmonkey's home page with the demo.
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