I found this video the others day. Its a montage of different preachers (mostly Ravenhill and Duncan Campbell) about true revival. Not the man-centered, finneyisque "revival meetings" of many Bapitst churches today. There is a song in the middle that I don´t like but the preaching is great and much needed in the contemporary church today. Whie we can´t "pray down" revival we should pray for a God-given revival, since its is only a work of His grace. Blessings.