So it's been over 13 months since this page was active, but finally we have some updates coming in.
First, we're halfway through making the move to Simplet , which is itself is not quite done just yet, but most of the unfinished features won't be used on How to Ubuntu.
Second, you can contribute to the next version of How to Ubuntu (the third, if you're keeping count) on GitHub , and preview it at b.howtoubuntu.org
This site is set to be stable for the new year.
Finally, you should be aware that How to Ubuntu will only be supporting the last LTS and Stable release of Ubuntu. As of right now that means 12.04 and 13.10, in April that will become 14.04 only
and from October '14 we will be supporting 14.04 and 14.10.
Tutorials specific to other versions will be marked as outdated.