"To be honest, we've struggled to keep every category in the A List up to date. We take the A Lists very seriously, and making sure that they really represent the best products on the market is very time consuming. Given this, we worked with the Labs team to work out which ones we should keep and which ones should go, based on both upcoming plans for content (if we're not planning on covering lots of SSD's, for example, we can't really make an A List) and on the interest in each category (based on the traffic we receive and the number of people searching for that kind of content). Unfortunately, that means some categories which people have found useful have gone." - Ian Betteridge