As a Labour Party member it pains me to say it, the Conservative Party web site is far better than Labour's site. The most immediate benefit is that it provides news syndication for its news releases. This is such an easy technology to implement that I'm at a loss as to why Labour has went to the trouble of redesigning its site and then missed out something so basic.
Don't just take my word for it but take a look at what permission marketing guru Seth Godin says about RSS feeds. It is doubly ironic that Labour is failing to do this when a lot of its latest election techniques are based on permission campaigning.
Another change for the worse is that the Labour site no longer offers an option to sync with AvantGo, so you can view it on the move. The Conservative site still offers this option.