If you haven't taken a look at the Steam store page recently, it's received an overhaul. Dubbed the "Steam Discovery Update 2.0", it's designed to help you find content easier, and we have to say it does the job wonderfully.
Between quick access links, more prominent personalization options, recently viewed section, and lots more, it's a big step up from the previous design (which was good but not great).
Other changes have been made to enhance Steam Curators and top sellers (which now show per region), among other items. Plus, a 'new on Steam' page lets you see all the new hotness with just a click.
Hit the source if you want details on everything new, or just hit up Steam as normal and see the new digs in action for yourself.