Yoga Asanas

There are six yoga systems:
Hatha Yoga,
Raja(Ashtanga) Yoga,
Bhakti Yoga,
Jnana Yoga,
Kriya Yoga,
Karma Yoga

References:
http://www.self-realization.com/articles/yoga/yoga_systems.htm

Yoga Asanas:

Vrksasana(Tree Pose)
Sarvangasana
Chakrasana
Dhanurasana
Baddha Konasana
ustrasana 
naukasana
Bakasana
Ardha Navasana
Ardha Matsyendrasana
Adho Mukha Shvanasana
Adho Mukha Vrksasana
List to continue ...

Pranayamas: (puraka (inhale) and rechaka (exhale) )
Kapalbhati Pranayama
Anuloma-Viloma
Ujjayi
Bandhas
Jalandhara Bandha 
Bhastrika Yoga Pranayama

Chakras:
Muladhara Chakra (Root)
Svadisthana Chakra (Hips, Sacrum, Genitals)
Manipura Chakra (Navel, Solar Plexus)
Anahata Chakra (Heart)
Visuddha Chakra (Throat)
Ajna Chakra (Third Eye)
Sahasrara Chakra (Crown)


References:
http://yoga-hint.com -- With videos
http://www.yogajournal.com -- Categorical description
http://www.yogapoint.com  -- Good pictorial description, with followup poses
http://lovemyyoga.com -- Good categorization of yoga asanas
http://www.myyogaonline.com -- Same as above
http://yogaandexercise.blogspot.in -- Yoga postures as per needs of human life
http://www.onlymyhealth.com -- list downs health related info
http://www.yoga-asana.net
http://yoga-health-benefits.blogspot.in
http://completeyoga.co.za/
http://yoga.about.com
http://www.iyogaclass.com
http://benefitof.net/benefits-of-yoga
http://en.wikipedia.org/wiki/List_of_asanas -- List of asanas
http://generalistic.blogspot.in/2009/11/asanas-for-thyroid.html -- Good info on thyroid related asanas

http://www.yogaforums.com/forums/f16/chakras-and-corresponding-asanas-396.html -- Good info about Chakras