With the review system becoming more and more popular, I've added a way for you to review downloaded DLC. The reviews work in the same way that the game reviews work, so there should be no major surprises there!
I've also created a page on the site with Clever Jake's awesome boosting calendar. This can be found on the Site Pages menu. At the moment it displays in GMT, but I will shortly add support for the timezone you have set up in your settings.