[janneman]

not sure where to post this, so move as seen fit.

Many universities put textbooks online. Either as pdf's or html's for reading online.

A good collection is available at:

• http://textbookrevolution.org/
• http://bookboon.com/uk/student
• http://onlinebooks.library.upenn.edu/

Some other good textbooks are here:

• Engineering Statistics Handbook
  by National institute of standards and technology & sematech
  http://www.itl.nist.gov/div898/handbook/
• Control Tutorials for Matlab and simulink
  by Michigan Engineering
  http://www.engin.umich.edu/class/ctms/
• Automating Manufacturing Systems with PLCs
  by Engineer on a disk
  http://engineeronadisk.com/V2/book_P...eronadisk.html
• Dynamic System Modeling and Control
  by Engineer on a disk
  http://engineeronadisk.com/V2/book_m...eronadisk.html
• Engineering Projects
  by Engineer on a disk
  http://engineeronadisk.com/V2/book_p...eronadisk.html
• Implementing Real Systems
  by Engineer on a disk
  http://engineeronadisk.com/V2/book_i...eronadisk.html
• Engineering Analysis
  by Engineer on a disk
  http://engineeronadisk.com/V2/book_a...eronadisk.html
• Computer Aided Design
  by Engineer on a disk
  http://engineeronadisk.com/V2/book_C...eronadisk.html
• Integrated Manufacturing Systems
  by Engineer on a disk
  http://engineeronadisk.com/V2/book_i...eronadisk.html
• More notes from engineer on a disk are at
  http://claymore.engineer.gvsu.edu/~j...ect/index.html

Feel free to post other good online textbooks and manuals!