So you are new to airgunning or you want to find out some specifics on the nuances of airgunning over other shooting you have done. We will have relative info for links to other demos or websites that provide lots of information.
www.arld1.com/ - This site has lots of detailed diagrams, tutorials, about sighting, shot cycle of a springer (really good one) and trajectory. I recommend every new person look at this. Note: unfortunately a lot of the site uses Adobe Flash so you may need to open on a PC
http://www.fekete-moro.hu/bfta-skills-manual/index-en.php - great resource for field target
http://www.fekete-moro.hu/bfta-setup-manual/index-en.php - Probably the best scope setup guide out there for FT.