Sanatkumara as Lord Karthikeya / More

Boudhayana Kalpa Sutra and Taittiriya Upanishad states that Sage Sanatkumara appeared as Lord Subrahmanya, also known as Lord Muruga in south, due to the request of LordShiva and Goddess Parvati. Lord Muruga is one of six main Deities 

http://fourkumar.blogspot.com/

Karthikai Deepam / Time / Bridge / More

http://en.wikipedia.org/wiki/Karthikai_Deepam
http://www.drikpanchang.com/festivals/karthigai-deepam/karthigai-deepam-date-time.html
http://www.astroved.com/festival/karthigai-deepam-festival/ 
http://food.sulekha.com/karthigai-deepam.htm 

Neervely Kandasamy Kovil

http://www.youtube.com/user/newjaffna1/videos?query=neervely+Kandasamy+kovil

Karthikeya thodi adhi sivan Veena

Scultures

http://shop.lotussculpture.com/nav/God-Murugan

Devotional Songs Collection

Kukkuta

https://en.wikipedia.org/w/index.php?search=Kukkuta
https://www.youtube.com/results?search_query=Kukkuta
http://www.slideshare.net/search/slideshow?searchfrom=header&q=Kukkuta

Poigaiyil

https://www.google.com/search?q=Poigaiyil

Chandigarh Sri Karthikeya Swamy Temple

http://www.youtube.com/user/lmbschd

Santhanam Manakuthu

https://www.google.com/search?q=Santhanam+Manakuthu

Bal Ganesha - Karthikeya Defeats Tarkasur

Bhaktan

http://www.youtube.com/user/Murugabhaktan/videos?flow=grid&view=1

Radha Viswanathan - Karthikeya Gaangeya - Todi

A snake found near Kukke Subrahmanya temple with 5 heads

http://www.eface.in/a-snake-found-near-kukke-subrahmanya-with-5-heads/

Naga Pratishta

http://anubimb.com/blog/2011/01/naga-pratishta/

Dancing temple elephant of Kukke Subramanya

Worship / Srilanka

http://www.visvacomplex.com/kandhapuranam3.html 
http://kataragama.org/research/krishnapillai.htm

Sri Kumaraswami – Velimalai / Links / Video

http://www.southdreamz.com/temple/sri-kumaraswami-temple-velimalai/
http://en.wikipedia.org/wiki/Kumarakovil
http://www.youtube.com/results?search_query=Velimalai 

Perumber Kandigai Murugan

http://shanthiraju.wordpress.com/2010/12/08/perumber-kandigai/
Map
http://wikimapia.org/#lat=12.3799103&lon=79.7824144&z=15&l=0&m=b
More
https://www.google.com/search?site=imghp&tbm=isch&source=hp&biw=1280&bih=643&q=Perumber+Kandigai+Murugan 

Thiruporur Kandaswamy Temple / Video

http://thiruporurkandaswamytemple.com/
http://www.youtube.com/results?search_query=Thiruporur+Kandaswamy+Temple