I've known about a "chart" for many years now, seems today it's all over the net, anyway you basically take the alphabet and add 6 to each letter like:
A=6 B=12 C=18 D=24 E=30 F=36 G=42 H=48 I=54 J=60 K=66 L=72 M=78 N=84 O=90 P=96 Q=102 R=108 S=114 T=120 U=126 V=132 W=138 X=144 Y=150 Z=156
Then you take a word or words and add them up to see if they equal 666.
Back then a friend and I found these words that added up:
computer
illusion
witchcraft
PeopleSin
Today I found a site that has calculator
http://www.angelfire.com/ok5/l-jackson/GCode.html, and there are other matches:
Digital ID Chip
VeriShield
Mark of Beast
Bio-Implant
Sorceries
Necromancy
Santa Claus
Confucius
Lustful
Corrupt
Insanity
Horrors
Treacheries
Slaughter
False Market
Stubborn
Unruly
Book of the Dead
Geneticist
Vaccination
Quarrels
Falling Away
Fallen Church
Hardened Heart
I also found that 444 means something too:
Jesus
Yshua
Messiah
Cross
Gospel
Jewish
Joshua
Obedient
Increase
Forgave
English
Gematria
Parent
Church age
Fruit
Chariot
Now I know we could probably find words that were "good" that add up to 666, but hey, this is kind of interesting, no? Coincidence?