The short version is:
For a long time Yahoo hated us having a .ltd.uk domain, and even though it's technically more official in the uk than a .co.uk domain even people in the UK thought it was weird, so when getahead.org became available I decided to change everything over to getahead.org. The new site has been live for a few days now and seemed to be working OK, so I've just 301 redirected everything from the getahead.org site to getahead.org.
This could well mean that your blog aggregator considers that I've just reposted all my articles, apologies if it does.
If you notice anything wrong, please shout and I'll try to fix it.