http://my.integritynet.com.au/purdic/antennas-rules.htm
http://www.emclab.umr.edu/pcbtlc/asm-strip.html
excellent tutorials on dipole, folded-dipole, loop, quarter-wave, and Yagi-Uda.
http://www.electronics-tutorials.com/antennas/antenna-basics.htm
basics of antenas and most commonly used antenna types.
http://www.personaltelco.net/index.cgi/AntennaInfo
right antennas can strengthen the chain by yielding better signal coverage, increased S/N ratio, reduced bit error rate, and lower power consumption all at very low cost
http://www.edn.com/archives/1996/060696/12dfcov.htm
Mr. Ufer developed the concept of concrete encased grounding electrodes which are suitable for radio antennas.
http://www.scott-inc.com/html/ufer.htm
Covers these antennas: arrays, corner-reflector, dipole, folded-dipole, ground-plane, long-wire, rhombic, turnstile, Vee, and Yagi-Uda.
http://www.tpub.com/neets/book10/42.htm
http://www.irving.org/ftplib/scanning/50v75ohm.txt