Not really related to software development but Instant Conference is one of those gems occasionally found while surfing the tubes.

You just give them an email address and you get back a conference number and an access code........that's it! The dial in number and access code are dedicated to you and never expire.  While in the conference there are many advanced features such as Conference Recording and Presentation Mode.

I've used my number several times and found the quality to be pretty good and the features easy to use.  If you record your conference you'll get an email in an hour or so that will allow you to download an MP3 file.  A nice feature for verifying your notes.