The ability to measure various forms of data and log it for further analysis is one of the strong points of the Arduino platform, as doing so is relatively simple. One example of this is the Geo Data Logger by Instructables user techbitar. They have demonstrated how to log GPS position data, time, speed, and accelerometer data to a microSD card in a well-documented project. Futhermore each stage of the Arduino sketch is explained well, so he reader has a better understanding of operation, instead of just "uploading and doing".
This tiny 3-axis accelerometer module can operate in either +/-1.5g or +/-6g ranges, giving your project the ability to tell which way is up. Ideal for robotics projects, tilt sensors, vehicle dataloggers, and whatever else you can dream up. For more infomation and to order, click here.