OAuth is an open protocol providing secure authorization of users on external sites via Odnoklassniki and access to Odnoklassniki API from external site servers or native apps

Like button will allow visitors on your site to mark favorite materials and share them with friends on Odnoklassniki

With content widget you can place any content from Odnoklassniki on your personal web-site (videos, photos, topics, products)

With group widget you can advertise your group on Odnoklassniki

With profile widget you can advertise yourself on Odnoklassniki

For external sites and native mobile applications Odnoklassniki provide a specific mechanism for publishing in the user notes

For external applications (sites, native or html5 mobile games), there exists a special user attraction mechanism using widgets

There is a couple of solutions to share an a video uploaded to OK on your site