Lol'd at GURPS: Gilligan
Also, that beginner's guide is not terrible, but it's a bit off.
For instance, an axe will greatly speed up harvesting of wood from a tree, but you can use anything from your bare hands up to a diamond pickaxe and they will all generate wood blocks you can pick up.
Regarding creepers, I lol'd when the guy said they only destroy within a 3 block radius. It's easily double that, and I've seen them go off when they are 2-3 blocks away from you.
If I was to give some advice to the beginning Minecraft player, it would look like this:
1. Make sure you have a place of shelter for night time. In our Action Team world, there are a number of places to take refuge. The huge castle is probably safest at the moment, and there are Eric's submerged house and Rood's lighthouse and the various mines close to spawn / castle. I only suggest the Castle because it is relatively creeper and spider proofed.
1a. You can access the castle by climbing a ladder at the end of the dock/pier on the south side, or by placing a block at the end of the drawbridge (west side) and jumping up (please turn around and destroy said block so monsters can't do the same thing). There is also an access point on the north side of the wall by the hill / trees but it's a little harder to get at. There is currently no entrance from the East.
2. Get tools and defensive weapons. In our world, we have enough shared resources that it should be easy to get at least stone tools and weapons to start off (sticks and cobblestone will do). You will need 3-4 pickaxes, maybe one regular axe, one sword. Get yourself some wood. First order of business.
2a. TORCHES. You can't effectively mine without them. Wood blocks > wood panels > sticks. Sticks plus a block of coal or charcoal on top of them in the crafting table = 4 torches.
2b. Consider armor. Especially boots and pants. When you fall, they absorb a lot of the damage. This should be a high priority for you as soon as you get some surplus iron. As you advance and will consider battling bad guys, chest plate and helmet are a good idea to absorb a beating. Diamond is the most rare mineral but also the strongest armor / tools and also causes more damage due to speed / raw damage stats. Gold is almost as fast but very soft and wears out quickly.
3. Always carry a good amount (20+) of sand or gravel with you. It makes going up or down a hell of a lot easier because they fall downwards when there is an air gap beneath them.
4. Immutable law of MC: NEVER DIG STRAIGHT UP OR DOWN. Lava will kill you and destroy your stuff. Falling gravel / sand will crush you and kill you.
5. If you die and have valuables on you, you have 5-10 minutes to get back to your death scene to recover loot. Anything that fell into lava is gone forever.
6. Don't be frugal with torches in mines. Once a block of floor gets to a certain light level, monsters can spawn right in the middle of everything and WTFPWN you. Note: Slimes will spawn in regardless of light level.
7. Use F3 to get coordinates for important places you visit and/or want to remember and to check depth from surface (64)and above bedrock, (which is around 0-5).
8. If you're going long-distance exploring, take a compass (always points back to spawn). Never know when you're going to be running for your life and might get disoriented otherwise.