Steam Servers Down

Hi, just wondered if anyone knows if the Steam servers are down. I've searched on Google and the most recent threads have mentioned items and stats disappearing. I can't access community or anything, so just wanted to make sure it's not my PC. Thanks!

My steam connection works ok. I did a resync with the cloud too, which worked, so the flow of in\out seems fine just now.

The community functions are now back online, but there's still no trading or inventory.

They're back online now. I'm surprised Steam doesn't warn for downtime.