Speaker Directory by HeySummit - Guests for your next event or podcast (or submit yourself!)
Sporteventus for iOS - The worldwide search engine for sporting events and tickets
PodKoi - Find podcasts to be interviewed on & guests to interview.
Jukely - Go to hundreds of concerts for one monthly fee 💃
PitchPodcasts - Promote your podcast to 325+ podcasts and 1.5K users
TicketHarbor - The safer Craigslist for P2P ticket exchanges