It is more reliable to have faith that Jesus Christ will save you from the Mark of the Beast rather than to speculate or dwell on the fear of receiving it. Seeing as no one seems to truly understand what it is, all you need to do is trust that you will be spared from it when the time comes.
HOWEVER, you may find this interesting:
Open up your bible to Deuteronomy 6, specifically verses 5-8:
(KJV)
"[sup]5[/sup]And thou shalt love the Lord thy God with all thine heart, and with all thy soul, and with all thy might.
[sup]6[/sup]And these words, which I command thee this day, shall be in thine heart:
[sup]7[/sup]And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up.
[sup]8[/sup]And thou shalt bind them for a sign upon thine hand, and they shall be as frontlets between thine eyes."
Verse 8 talks about "binding" a symbol on the right hands and foreheads (between the eyes), which is no different than the concept of the Mark of the Beast in Revelation:
Revelation 13:16
"[sup]16[/sup]And he causeth all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads:"
Therefore, for sheer speculative purposes it can be considered a possibility that the Mark of the Beast could be a mentality rather than a physical mark or microchip in the same way Deuteronomy 6 talks about a "mark of godliness" on the hands and minds of God's faithful followers.