Yeranen Yaakov has a series of current Gog uMagog links, worth checking out.
Dreaming of Moshiach has an excellent post on knowing the time of the geulah. A top notch Torah analysis.
Josh at Parsha Blog reviews the often cited Gemora Sanhedrin (97a) on the time of the Geulah.
BS"D - בסיעתא דשמיא