Links

Spirits

http://en.wikipedia.org/wiki/Spirit 

Spirit World

http://en.wikipedia.org/wiki/Spirit_world_(spiritualism)
http://www.creativespirit.net/spiritworld/
http://www.fst.org/sptwld1.htm
http://www.lightplanet.com/mormons/basic/afterlife/spirit_world_eom.htm
http://www.angelsghosts.com/spirit_world
http://nov55.com/spw.html 

Mediums

http://en.wikipedia.org/wiki/Mediumship

Afterlife 

http://en.wikipedia.org/wiki/Afterlife http://www.near-death.com/ http://www.afterlife-knowledge.com/

Spiritism 

http://en.wikipedia.org/wiki/Spiritism
http://www.explorespiritism.com/

Spiritualist Churches 

http://en.wikipedia.org/wiki/Spiritualist_Church