Have you used parley.io yet?
It is like Reddit except it posts to the Steem blockchain. You sign in using your private posting key from Steemit.
Basically you post a url to an interesting article and comment on it. Other people can upvote and comment as well.
So as was doing the research for their next Steemit post - they posted the urls to interesting articles on the stocks they were researching on Parley and were surprised by the speed and number of upvotes. Here are 2 examples that were posted about an hour ago:
300 upvotes https://www.parley.io/thread/dowdogs/20180527t214216245z
150 upvotes https://www.parley.io/thread/dowdogs/20180527t215055228z
Try it out and see if it works for you.
If you do, you will see they show up on your Steemit blog like a normal post. But you will need to edit it to add the #investorsclub and #stocksymbol tags.