Here are a few website regarding the study of UFO's. This list is not exhaustive. As always, we encourage you to use discernment and the Word of God as the final arbitrator.
Chris Ward, Guy Malone, Joe Jordan - Christian website dedicated to helping people who have experienced alien [aka demonic] visitations be freed by the power of Jesus' Name.
L.A. Marzuli, Christian author of Politics, Prophecy, & the Supernatural, and the Nephilim Series, - daily blog
Tom & Nita Horn, et al. - Christian site offering cutting edge news on transhumanism, ufo's, bio-chips, and more.