Better UI Design catalogues techniques you can use to improve your visual design.
Genuine Copy is a set of realistic copy that designers can use to practice their visual design skills.
Attention to Detail is a set of short case studies that celebrates websites that pay a lot of attention to detail.
Before I Play is a wiki that collects tips people should know before they play a video game.
I mentor two designers for UXPA UK.
I collect useful design links in my public Pinboard account.
I started a Meetup group called London Design Play to help people learn about UX design while they had fun. It lasted a year.
I was on the UXPA UK committee for two years as the UK Liaison.
I ran a weekly visual design challenge on the Designer Hangout Slack group.