To Share any Post or Article on MindStick you need to Register at MindStick with your verified credentials. 

After signing up to MindStick you need to locate yourself to Developer Section

Now its all up to you whether you are interested in Posting ARTICLES or BLOG!
Suppose You are Choosing ARTICLE click on the Article Button new window will open which will allow you to CONTRIBUTE, click on Contribute > AN ARTICLE and move further. 

Now the New Window will allow you to Post your Own Post, Write-Up, Article.
Or you can directly click on the link and post you own Post/Article.