Sounds and music for presentations make HUGE improvements to the professionalism of the actual presentation. We all have the moment where we are trying to decide ‘do I just put the music in and ignore copyright or do I do the right thing?’. I suggest doing The Right Thing. Enter Dig CC Mixter as a source of sounds and music that are on Creative Commons (royalty free). No account is needed, you can search for sounds, genre’s of music and then just download what you need. It is a huge site, claiming to have over 20,000 audio files. It is the best free sounds site I have used in recent years. Make those projects and presentations better with Dig CC Mixter.