You can choose whatever suitable topic you prefer, but please mind the following points:

• Your audience will be composed of developers, system admins, end users and business users. The bulk of the attendees are developers, but don't assume that everyone in your development session is.
  
• No "parachuting". We expect you to be here for the whole Saturday and mingle with the attendees during the SharePint. Don't be the person who comes, delivers the sessions and leaves.
• No self-promotion. We're sure that your company or product are the best, but we don't allow marketing sessions (they are reserved for our sponsors and clearly separated in the agenda). Of course, you can refer to your company in your talk but you know the line. Thank you for respecting it.
• SPS Barcelona is dedicated to providing a harassment-free conference experience for everyone, regardless of gender, sexual orientation, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of participants in any form.
• All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual language and imagery is not appropriate for any conference venue, including talks.
• Be kind to others. Do not insult or put down other attendees. Behave professionally. Remember that harassment and sexist, racist, or exclusionary jokes are not appropriate.
  
  

We will cover one hotel night (Friday to Saturday) for speakers that come outside Catalonia.