Demonstrators take to streets to mark 15-M anniversary
More than 80 cities across Spain will join in the protests
Where did the 15-M movement go?
A year after its sudden appearance on the political scene, the protest movement has returned to its roots, setting up nationwide support networks that are run locally
Group that spawned 15-M splits over change in structure
Arguments surface about registering as a non-profit organization
The faces behind the mask
Four members of Anonymous talk to EL PAÍS about the group The hackers have published the personal data of public figures they consider to be enemies