There are several options to earn with 2key.io company, that re-inventd links. It is possible to earn
2key tokens, currently 0.03 USD https://www.coingecko.com/en/coins/2key-network
Reputation, that can be converted to tokens. See blog post : Launching 2key Reputation Mining
There are several possible ways to earn, some of these, for example, are:
Collecting crypto via smart links to an integrated wallet
Earn 2key token by forwarding campaign links
Earn reputation and/or tokens via social mining, retweets, community tasks.
Setting up training in Zoom and collect participation fees via smart links.
Staking 2Key token
The 2key.network is complex. It is advanced technology built on Ethereum level 2 and there are so many option to use this service, that it requires some time to try all of them.
There are 2 important addresses to start
https://2key.io/ to set up account, wallet, links and referring campaign
https://community.2key.io/ to join community tasks and mine reputation.
This blog post from October 5th explains how to earn passive income with Smartlinks:
Track Your Posts Sharing's Reach in Detail and Earn Residual Passive Income with SmartLinks:
Examples of smart links that can be either opened or referred and earned are as follows. To refer someone by sending a link, 2key.io account is needed.
https://2key.me/2KeyBlog2KeyNetworkFlashContestCreateSmartlinkEarn2Keys/moto/Gf8lb
https://2key.me/2KeyInterviewSmartlinksCryptoDefiErezBenKikiAlexandreRaffin/moto/TgUjR
As described in the first link, smartlinks can be created for free (as layer 2 Ethereum technology permits), just for campaign tracking and reputation earning.
With free link creation option, one can gain some knowledge and earn by learn.
Nice content and this is very potential token but 2key is not available to all device like mobile phones. You can earn free 2key tokens if you using desktop only and so far you can't earn free token for inviting.