CNN is making another move online.

The Time Warner Inc.-owned (TWX) news firm will start selling tiered subscription offerings for its digital publication as soon as the second quarter of 2018, said CNN network president Jeff Zucker in an interview with the Wall Street Journal.

The premium subscription setup will allow customers access to special content not available on other CNN platforms, including in-depth resources from CNN Money and CNN Politics. The top-level subscription will be centered around some of CNN's most popular personalities. Another secondary subscription will offer additional content, but it won't be as specialized as premium users' news.

Pricing for the proposed plan hasn't been established yet, Zucker told the Journal. The plan is CNN's latest in a bid to establish new revenue sources and reach $1 billion in digital revenue by 2022.

Establishing a direct-to-consumer subscription service would take some pressure off ads that run before videos as a source of revenue. Finding online ad buyers has become increasingly difficult for sites that are forced to compete with heavy hitters Facebook Inc. (FB) - Get Report and Alphabet Inc. (GOOGL) - Get Report .

Time Warner stock moved higher 0.53% to $95.20 premarket Friday.

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