UX booth is a user experience blog written by a collective of authors and contributors. They write about interaction design, usability, information architecture, accessibility and other related topics. They produced a nice overview of interesting user experience blogs and resources.

Besides these blogs we also use some other resources such as:

UXbyDesign blog

UXbyDesign , reports on user experience news. Shows of special features, site and product reviews from a  UX point of view.

UserFocus, articles and documents

Userfocus is an usability consulting and usability training company with interesting articles on user experience research, user experience design and user experience management.

Usabilitynews, news & articles

Usabilitynews is the news site of the HCI group of the British Computer Society (BCS). Producing short usability related news items, more indepth articles but also an overview interesting events and trainings.