On some sites, points are gained for inviting new users to the site.

In November 2012, Google invited users to contribute panoramas of their own using gadgets with Android 4.2.

It invited users to leave their email addresses for the upcoming beta test.

There is a printed tutorial in the manual, and a message in the package inviting users to report any bugs they encounter.

Premium account holders can invite other users and share specific collection of strips, called "projects".

Jim Greiner, director of business development at MapQuest, said the site had a feature that invited users to write in with corrections to routes.

You can invite other users to receive your Tweets, and you can follow other members' posts.

The creator of private channel can invite other users to the channel.

Moreover, this space allows for more than one user; essentially, it invites multiple users.

They then invited users to add those pages to their lists of friends.