Online dating or Internet dating is a system that enables people to find and introduce themselves to potential connections over the Internet , usually with the goal of developing personal, romantic, or sexual relationships. An online dating service is a company that provides specific mechanisms generally websites or software applications for online dating through the use of Internet-connected personal computers or mobile devices. Such companies offer a wide variety of unmoderated matchmaking services, most of which are profile-based. Online dating services allow users to become “members” by creating a profile and uploading personal information including but not limited to age, gender, sexual orientation, location, and appearance. Most services also encourage members to add photos or videos to their profile. Once a profile has been created, members can view the profiles of other members of the service, using the visible profile information to decide whether or not to initiate contact. Most services offer digital messaging, while others provide additional services such as webcasts , online chat , telephone chat VOIP , and message boards. Members can constrain their interactions to the online space, or they can arrange a date to meet in person. A great diversity of online dating services currently exists. See comparison of online dating services.