I was planning to do a GPS tracker using the Arduino Ethernet, but the main problem is to connect the Arduino to the Internet. Was wondering what kind of modem should I use. Any tips?

Getting mobile internet for Arduino.

system October 13, 2012, 4:47am 6

blacblu:
Are these kind of GSM modules easy to use do they come with good documentation/samples?

Define "easy to use". Sparkfun has a few different modules, with some examples:

Topic		Replies	Views
Arduino and GPS - GSM module Networking, Protocols, and Devices	8	3308	May 6, 2021
[Arduino + GPS + GSM] Am I getting the appropiate modules? Project Guidance	3	2276	May 5, 2021
Connecting arduino to the 4G network Networking, Protocols, and Devices	4	4152	November 12, 2021
USB 3G/4G Modem or GSM shield Project Guidance	22	30051	May 5, 2021
USB Modem to Ethernet shield Project Guidance	3	1755	May 5, 2021