Mobile Apps and Emails:
Join Project One Cry and download the mobile app to receive prayer updates: http://www.onecry.com/
Way Makers has many practical tools for praying: http://waymakers.org/pray/
Subscribe to the Global Prayer Digest emails: http://www.globalprayerdigest.org/index.php/subscribe
Pray for the Persecuted Church: http://www.persecution.com/
Unite with others in Prayer:
Attend a National Day Prayer Event: http://nationaldayofprayer.org/
Attend a Global Day of Prayer Event: http://www.globaldayofprayer.com/
Pray over the web with the International House of Prayer: http://www.ihopkc.org/
Join The Navigator’s Pray Network: http://www.navpress.com/pray/
Purchase resources like Intercessory Prayer by Reese Howel on prayer from organization that has over 500 resources just on prayer:
http://www.prayershop.org/Prayer-Connect-s/56.htm