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.