Looking on the internet deeply has found these results:

on linkedin is the most popular phrase on the web.

in linkedin 112,900,000 results on the web	on linkedin 1226,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I have hundreds of thousands of followers on Twitter and Instagram and dozens of contacts waiting to connect with me on Linkedin. Did you tell them I'm on Linkedin? All right, well, I'll hit you up on LinkedIn. I posted my resume on Linkedin. 20120220STO38576 EP on Facebook MEPs on Facebook EP Facebook chats EP Information Offices on Facebook EP on Twitter EP on LinkedIn EP on Flickr Flickr slideshow of Facebook chats EP on YouTube I am only 85 percent complete on LinkedIn, and that bothers me.

in linkedin

112,900,000 results on the web

on linkedin

1226,000,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I have hundreds of thousands of followers on Twitter and Instagram and dozens of contacts waiting to connect with me on Linkedin.
Did you tell them I'm on Linkedin?
All right, well, I'll hit you up on LinkedIn.
I posted my resume on Linkedin.
20120220STO38576 EP on Facebook MEPs on Facebook EP Facebook chats EP Information Offices on Facebook EP on Twitter EP on LinkedIn EP on Flickr Flickr slideshow of Facebook chats EP on YouTube
I am only 85 percent complete on LinkedIn, and that bothers me.