Automata Theory
- Wikipedia article on finite state machines with links to articles about pushdown automata, linear bounded automata and Turing machines.
- http://en.wikipedia.org/wiki/Automata_theory

Types of Automata
- Intuitive definitions of automata from the more complex Turing machines to the simpler finite state automata.
- http://www.dickinson.edu/~chapina/314/slides/020.AutomataTypes.pdf

Turing Machines
- A brief survey of finite state automata, pushdown automata, linear bounded automata and Turing machines.
- http://www.cs.princeton.edu/courses/archive/spr01/cs126/lectures/T2-4up.pdf#search=%22linear%20bounded%20automata%22

Finite Automata to Turing Machines
- Set of slides from History of Computers and Computing with basic information on automata.
- http://www.cs.nott.ac.uk/~tpp/G5AHOC/pdf/hoc7.pdf

Automata and Formal Languages
- A terse statement of important definitions and theorems in this field of study.
- http://carlstrom.com/stanford/comps/Automata-and-Formal-Languages.txt

Automata
- Course notes from the University of Kentucky with sections on finite state automata, pushdown automata and linear bounded automata.
- http://www.cs.uky.edu/~lewis/texts/theory/automata/autointr.pdf

Finite State Machine
- Wikipedia article on FSA, Moore and Mealy machines.
- http://en.wikipedia.org/wiki/Finite_state_machine

Computation, Automata, Languages
- Notes, small essays, explanations, reading lists. By Cosma Rohilla Shalizi.
- http://cscs.umich.edu/~crshalizi/notebooks/computation.html