Im going to start and get to grips with the best system for us with WordPress.

Seesmic

Seesmic allows you to post longer than clips than 12 Seconds. Integrates well with WordPress, allowing you to record and post from within the WP interface, this is then published in WP and posted to your Seesmic account and Twitter should you want it to.

12Seconds

Testing more vloging tools and methods on 12seconds.tv

This uses the 12seconds plugin and shortcode to grab my feed, but its not ;
[12suser username="swinhoe" size="fat"]

Youtube

As-yet no WP plugin to record direct from the admin UI.

Vimeo – does not allow recording and posting from webcam direct to the platform.

To summarise, and i may review this at any point, I think Seesmic is going to win here. Its built right into the WordPress UI, so you can blog from the admin of your site, and its pushed to the Seesmic site and Twitter automatically, and its not forced to be a mere 12 seconds.

Youtube is cool, and will have a greater level of exposure for the larger audience, but you can work with that to get them to your site or blog are negate the issue. But I’ll prefer to keep Youtube for edits and films.

12Seconds. Well, its ok, but its not very long, and the audio compression is awful as you’ll hear below…

NOOOOOO on 12seconds.tv

Addendum

The other way….
Test video blog – via the iSight and uploaded to WordPress.
This page http://support.wordpress.com/videos/, indicates that you can upload your own video into WordPress, these could easily be recorded from an iSight and posted straight to the server. However, this appears not to be working currently, if I find out more this post will be updated. (There is the drawback with this method that the video is only posted to the WP install and not to other social media platforms…).