Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Geosetter - GeoSetter is a freeware tool for Windows (requires Internet Explorer 10 or higher) for showing and changing geo data and

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

Geotag - GeoTag is a freeware tool for Mac for showing and changing geo data of image files (e.g.

Bigtent - BigTent is a web-based organization and communication portal for groups.

Pictomio - SiteKiosk™ software (Win/Android) provides lockdown, remote maintenance and content management (Digital Signage) for your public access Internet Devices.