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Wisconsin
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Hello

So I have seen cellular modules on the market I've never had one or really understood them so I have a few questions. I dont know much about wireless interfacing so i may sound like a newbie.
If you could answer as many as you can please.

1) what should I be looking for if I just want to relay a bit of info over long distances every so often?

2) do you need a "network" like verizon or something to use them? (I'm gonna guess no)

3) how would an arduino communicate with one? Through spi, i2c, or what?

4) anything else I should know? 
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1) what should I be looking for if I just want to relay a bit of info over long distances every so often?
You need to define how much data "a bit of info" is, and how often "every do often" is.

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2) do you need a "network" like verizon or something to use them? (I'm gonna guess no)
Guess again. Someone is paying for the network, and is going to charge you to use a share of it.

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3) how would an arduino communicate with one? Through spi, i2c, or what?
Which one? Most use SPI.

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4) anything else I should know? 
This is not a newbie project.
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Wisconsin
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By a little bit, I mean about 16 bits of data every 15 minutes.

So whos network would I be using? Would I choose?

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So whos network would I be using? Would I choose?
Depends on who you buy your SIM card from. Yes, you choose.
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Wisconsin
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So the payment would just be the sim card, I wouldn't need a plan or something, right?
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So the payment would just be the sim card, I wouldn't need a plan or something, right?
Typically, the price per minute depends on just how committed you are as a customer. Very committed (got a plan) == low price. Uncommitted == high price.
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Wisconsin
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Well I just want to send 2 bytes of data every 15 minutes.  How much would that typically cost?
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How much would that typically cost?
Go ask at your local phone store.
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