Ask HN: How do you manage your bookmarks?

I recently developed a bookmarking extension for Chrome that uses a google app engine app as back end. I am trying to find out how people who do a lot of research online manage their bookmarks and if my extension may be useful to them.

The main idea is to save a bookmark with minimum interruption and later find it easily. When I want to save a page, I click on the extension's icon on the browser bar and when I need to find the bookmark I search for it in the back end. Both saving and finding bookmarks is fast and my research is not interrupted.

I uploaded my extension to Chrome store to be used by invitation only but I don't know how to find people who may be interested in this extension and be willing to beta test it.

I placed questions in google app engine and chrome extensions groups but so far no replies. I thought I ask here too. How can I find technically savvy test users who are willing to share their feedback with me? Thanks.