I think people most people use http://www.dota2lounge.com/ for this.
I don't know of an easy way to browse friends items though. I just search for things and trade them. You can go on steam and look at anyone who friends you or people who just have them public as well.
კომენტარი შეიცვალა
BACKPACK info is in the webAPI. Thanks for the feedback. I don't see any strong opinions, so I will just go ahead and add it to DBE and see what happens.
კომენტარის დასაწერად გაიარეთ ავტორიზაცია.
Is it something you want to see?
Also, DBE chrome edition now on store. Would be appreciated if some people can try installing it. Some users have been reporting that the page does not exist, which is weird.
https://chrome.google.com/webstore/detail/dotabuff-extended/oggpckdeaofelnblpijaiijmgfckncdf?hl=en&gl=AU