@gailc , I might be wrong but it seems to me that Schoology is more for K12 than high ed, so I've shared this with the K-12 group in the Community.
As to your question, it seems directed to the list in the article. I copied the list and added my comments/feedback.
*Easily search, browse and use Google Docs directly from within the LMS
Yes, with the new Google Drive integration there is a link to Drive in my course on the left navigational links.
*Distribute a unique copy of a Google Doc to every student in the class from within the LMS
Yes, this can be done as part of an Assignment.
*Monitor student progress on an assignment in real-time without leaving the LMS
Technically, yes you could do this from Collaborations, but I've honestly never tried.
*Submit their assignments back to the instructor with a single click
Students would need to go to the Assignment first, but otherwise, yes it is pretty easy and straightforward.
*Place grades and feedback on the Google document within the LMS
Using Speedgrader and Crocodoc I'm able to provide this type of feedback from within Canvas. Yet, it's not actually part of the google doc - so if the student looked at just their google doc they wouldn't see the feedback. The student would need to go to the assignment to see the grade and feedback.
Hope this helps!