links 

Dr. Duke´s phytochemical and ethnobotanical database (english)
http://www.ars-grin.gov/duke/

Phytotherapy database (spanish)
http://www.fitoterapia.net/

Very interest database about southamerican medicinal plants
www.rain-tree.com

Some information about herbs you can find here
http://www.econaturaone.it/home.html

Page about herb Manayupa (Desmodium adscendens Sw.)
http://www.wholeworldbotanicals.com/herbal_desmodium.html

Pages about Palo Santo (spanish)
http://www.palosanto.net/palosanto_en.htm

German page about Cyclantera pedata L. Schardt. (Caihua)
http://www.verbrauchernews.de/artikel/0000006511.html

Caihua once more (italian)
http://fiocco59.altervista.org/caigua.htm

Interesting pages about Guanabana (Graviola ) Annona muricata L.(english)
http://www.graviola.org/

German forum about nutritional supplements and much more
http://www.health-paradisi.de/

More articles and abstracts about medicinal plants
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=Pager&DB=pubmed

Oficial page of  Schamanismus und Heilen e.V. Mondsee (Austria)(german)
http://www.schamanenkongress.de/

Peruvian Helaer Don Pedro Guerra
http://don-pedro-guerra.net
 
Ayahuasca, Yaje....(english)
http://www.biopark.org/peru/sqcleansing-01.html

About peruvian agriculture (spanish)
http://www.peruecologico.com.pe/cultivosincas_crono.htm

Peruvian indians Ashaninkas
http://www.rcp.net.pe/ashaninka/

Peruvian nature (spanish)
http://www.peruecologico.com.pe/opciones.html

Discovery of Machu Picchu due Hiram Bingham
http://www.gutenberg.org/files/10772/10772-h/10772-h.htm

Interesting shop of our friends
http://www.vegetalismus.cz