Marcus Barb offers Telegram protocol marketing services, including airplane protocol and VIP membership access. They provide support through multiple channels: @zawox, @tgvipsession, and @svip333, with a bot available at @svip333bot. This service appears focused on enhancing Telegram user experience and potentially providing exclusive access or features related to airplane protocols. It may be connected to Web3 air travel and gamified flight bookings, as suggested by similar projects. It is also related to airdrops.