I own five groups on facebook and use my groups to promote my own services. I was thinking about coming up with a script (or is there a truly free, unlimited service?) that will "bump" posts by commenting on them. Or even post a brand new post using a template.

Pinning the posts does not make them visible on facebook mobile (unless you click to watch the pinned post). So far I have the direct link to each post in an excel sheet so I just click the URL and it will open the post, then I type "bump" or "b".

Any ideas to make that into a script so this bump goes to all groups at once provided I have the URL for each post at its specific group?

Thanks a lot!