Thanks for your reply!
So you don't believe that the mark has anything to do with the actual end-times (in terms of the fact that we're all still here!?)
It's interesting as I always thought it was something to come pretty close to the end of this world as we know it...
There are four different schools of thought as it comes to the Revelation of St. John.
1) Historicism - This says that the Revelation describes events in a cryptic manner relating to the entire history of Christianity from the beginning until the end. The Protestant Reformers were in this camp, and they identified the Beast of the Revelation with the office of the Pope (not the person, but rather the office, the Pope as a person could be a devoted Christian, but the office was itself Antichrist).
2) Futurism - This is one of the more well known views simply because it has been popularized in books, media, and by vocal proponents in many churches. This says that the entire contents of the Revelation take place at an as-of-yet future period, typically associated with either a 3 1/2 or 7 year period of tribulation during the reign of a future Antichrist (the Beast).
3) Preterism (Partial here) - Not as popular as the above two, but still has strong support among many across many denominations and theological traditions. Here the Revelation is seen as primarily describing events during John's lifetime. Partial Preterists of course believe that Christ's return is yet future, but that here John is reminding the Christians suffering under persecution that their suffering is temporal, Christ will return and vindicate His suffering saints.
4) Idealism - Here the Revelation is seen as describing not actual people and events (present or future), so much as describing the general engagement between the powers of the world and God's people and God's promises to His people in Christ. As such it describes how Christians will always suffer, the devil and the world-powers will always fight against the Church, but we are to remain steadfast in faith, enduring until the end, because God has already won the victory in Christ and will bring all suffering to an end when He returns and makes all things new.
I probably subscribe to bits of both 3 and 4, I'm a little bit Preterist and a little bit Idealist.
Most on this board are Futurists, as such they see the whole Revelation as talking about a future period known as the "end times" in which the events of the Revelation will take place. I don't share that view, neither do a great many other Christians across denominational lines. My basic reasoning for rejecting the Futurist reading is that I don't think it makes sense of the context--St. John writing on Patmos during a period of persecution to seven actual churches located in the Roman province of Asia.
This article on Wikipedia also, perhaps, more succinctly describes these four schools of eschatological thought:
http://en.wikipedia.org/wiki/Christian_eschatological_views#Approaches_to_prophetic_interpretation
-CryptoLutheran