wossis.com is a flashcard viewer with the option of spoken captions. You can view all the flashcard sets (cardsets) on wossis.com for free. If you register with wossis.com, you can create your own cardsets - also for free! Everything is free at wossis.com, except for adding your own URLs to the whitelist. If you have no idea what that means, then - for you - it's the same as "everything is free"!
Technical stuff - wossis.com is written in pure Java, served by spider.my's Spinneret web server, running on Ubuntu at one of XenSmart's smaller VPSes. The font in the logo is a Thai (OK, so it's all Latin characters!) font called Purisa. The site uses javascript, Flash (thanks to Scott Schiller's SoundManager2) and cookies in places, so you'll get a better experience with these installed and working correctly in your browser.
Also in this update is a 'Copy' function for cardsets. If you want to (for example) provide a version of an existing cardset in a different language, you can copy the original in a single operation. Any user's cardset may be copied this way, but the copy will be 'owned' by the user who copies it.