Graffiti social networking site Ekosystem is a brilliant example of technology furthering an art community. Users from around participate in the photo sharing community by submitting photos of graffiti, stencils and pieces complete with tags, which are then sharable and searchable quickly and easily. Pretty much every major city in the world is covered and as it’s an open community, so you graffiti photographers out there take note and get involved.

Read more: Street graffiti in Japan | Ekosystem

French artist, Space Invader, or someone close to him, has posted pictures giving Flickr users an inside look of his ‘invasion’ of Vienna throughout June 2006. Creating a mixup of art installation and social exploration game, the artist created tile-based pixel art recreating characters from the classic video games Pac-Man and Space Invaders, then pasted them to buildings around Vienna, Austria. Space Invader is currently at residence in Vienna’s Museumsquartier.

[Space Invader Flickr Gallery | Space Invader]