Klaus follows these people on Refind.

Philcomputing
For more than 15 years, I have been consulting companies on online communications, permissions marketing and social media relations.
Heike Scholz
Speaker | Autorin | Mobilista | Geekette
Volker Oppmann
CEO of @mojoreads and publisher of @onkelundonkel caring about literacy and democracy in the digital age.
Rand Fishkin
Founder of @SparkToro, husband to @everywhereist, feminist, author of "Lost & Founder". Formerly @Moz. I tweet ~40X/wk on marketing, tech, & startups.
Christina Ullrich
Verantwortliche Redakteurin prmagazin, Kölner Imi, Weltenbummlerin, Heimwerkerin. Hier privat zu PR und anderem.
Martin Thielecke
Go Developer, 01001110 01000101 01010010 01000100, INTJ, and if you follow me, it's your own fault. https://mastodon.cloud/@mthie