social media linked in FB , xing

https://www.linkedin.com/pulse/7-benefits-using-linkedin-sarah-rycraft/

LinkedIn vs. Xing: The Battle for DACH

5 BENEFITS OF USING LINKEDIN FOR BUSINESS

6 Benefits of LinkedIn in Growing Your Business

LinkedIn vs. Xing: the battle of the B2B social media networks

https://www.martechadvisor.com/articles/social-media-marketing-2/is-facebook-still-important-for-b2b-marketing/

https://www.b2bmarketing.net/en/resources/blog/7-benefits-using-facebook-business-promotion