I've taken the time to compile a list of prayer calls open to the public, prayer apps, and online ministries related to corporate prayer, called "40 Ways to Pray." It highlights Pray.Network as well as several other ministries here.
I would love to see this used by as many pastors and prayer leaders as possible, to encourage others to join in praying together and seeking God for revival. It is free to subscribers on my blog, but I am including a link here for Pray.Network members only to use and share (click here for the downloadable link).
There is also a related article on my blog page for use as a lead-in teaching tool or devotional - please simply give credit to the author when doing so! :-) Blessings,