There's threads for every other religion. About the Sikhs:Guru Granth Sahib (http://en.wikipedia.org/wiki/Guru_Granth_Sahib)
Dasam Granth (http://en.wikipedia.org/wiki/Dasam_Granth)
Varan Bhai Gurdas (http://en.wikipedia.org/wiki/Varan_Bhai_Gurdas)
Daily Hukamnama (http://www.sikhnet.com/hukam)
Bhai Nand Lal (http://www.info-sikh.com/PageNand.html)
Ardas (http://www.sikhiwiki.org/index.php?title=Ardas)
Amrit Sanskar (http://www.sikhiwiki.org/index.php?title=Amrit_Sanskar)
Anand Kraj (http://www.sikhiwiki.org/index.php?title=Anand_Karaj)
Anatm Sanskar (http://www.sikhiwiki.org/index.php?title=Antam_Sanskar)
Naam Karan (http://www.sikhiwiki.org/index.php?title=Naam_Karan)
Dasvandh (http://www.sikhiwiki.org/index.php?title=Dasvandh)
Langar (http://www.sikhiwiki.org/index.php?title=Langar)
Paath (http://www.sikhiwiki.org/index.php?title=Paath)
Kirtan (http://www.sikhiwiki.org/index.php?title=Kirtan)
Kara Parshad (http://www.sikhiwiki.org/index.php?title=Kara_Parshad)
5 Banis (http://www.sikhiwiki.org/index.php?title=Bani)
5 K's (http://www.sikhiwiki.org/index.php?title=Five_ks)
5 Evils (http://www.sikhiwiki.org/index.php?title=Five_Evils)
5 Virtues (http://www.sikhiwiki.org/index.php?title=Five_Virtues)
Simran (http://www.sikhiwiki.org/index.php?title=Simran)
Karseva (http://www.sikhiwiki.org/index.php?title=Seva)
3 Pillars (http://www.sikhiwiki.org/index.php?title=Three_Pillars)
Guru Nanak Dev (http://www.sikhs.org/guru1.htm)
Guru Angad Dev ji (http://www.sikh-history.com/sikhhist/gurus/nanak2.html)
Guru Amar Das ji (http://www.sikh.com.au/sikhgurus/amar.html)
Guru Ram Das ji (http://www.allaboutsikhs.com/gurus/gururamdas.htm)
Guru Arjan Dev ji (http://www.srigurugranthsahib.org/guru-arjan/index.htm)
Guru Har Gobind ji (http://www.singhsabha.com/guru_har_gobind.htm)
Guru Har Rai ji (http://www.allaboutsikhs.com/gurus/guruharrai.htm)
Guru Har Krishan (http://www.sikhiwiki.org/index.php?title=Guru_Har_Krishan)
Guru Teg Bahadur (http://www.sikhiwiki.org/index.php?title=Guru_Teg_Bahadur)
Guru Gobind Singh (http://www.sikhiwiki.org/index.php?title=Guru_Gobind_Singh)
Sikh History (http://www.sikhiwiki.org/index.php?title=Category:History)

I love the music of the Punjab.

I love the music of the Punjab.

Bhangra! Oh yeah!

Sikhs have a foothold in Indian history. One of their most famous Gurus was Guru Granth Sahib, who fought for the religious freedom of Hindus during the reign of a rather dastardly Muslim emperor by the name of Aurangzeb.

As a religion, it is definitely a dharmic religion and relates to Hinduism in many ways but the basic reduction was in the form of ritual, which they believed meant nothing - so they removed the Upanayanam (Hindu rite of passage) and the caste system, and other things. Pretty cool.