As far as actual routines go there are a few guidelines.
You don't get stronger from exercising; you get stronger recovering from exercise. If you do not rest enough you actually limit your progress. Never heavily exercise the same muscle group on consecutive days; you may alternate upper lower body or do both on the same day with a rest day in between.
Your exercises should be ordered general to specific. Do exercises that exercise several muscles before doing exercises that target a single muscle.
Competitive bodybuilding involves balance and symmetry as much as size. You should design or ask for help designing a routine with exercises to address any areas that are weak.
The most important thing for beginners is to learn and get in the habit of doing your exercises with perfect form. Learning how to perform your lifts correctly will pay back in better gains and fewer injuries in the future. In order to do your exercises with perfect form you will probably have to use pathetically light weights at first; don't worry about the jerks grunting and snorting away showing off lifting more weight than they should; just do your own thing.