AudioPal is a new site that I learned about from Larry Ferlazzo's incredible blog. This is an online service which allows you to record audio then post it on your site/blog, very similar to Recordr.
What I like so much about AP is that no registration is required; all you have to do is record your audio and then put in an email address so you can get a link to your embed code. Also, you have the ability to upload your audio files and turn them into an embeddable "widget".
Below is my quick example of recording my audio...
Give AudioPal a try by clicking here.