EventinBarcelona.com is the best solution for you in the field of public events.
This kind of events is open for everybody, is on schedule and registered, e.g. Concerts, political Event, road show, promotions, press conferences, workshops, trade fairs presence... With a big audience for entertainment and usually it is for free. This is a public opportunity to meet, discuss and share information.
See and feel the business, more visibility means more attention!