Jira may be extremely sluggish and require a large amount of memory on the client side.
Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Eventsquid - Eventsquid is a SaaS-based event management and registration software for corporate and small-scale event planners.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Socio - Connecting with people is just a "phone shake" away!
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.