2 links
Modern Theosophy: Karma and Reincarnation
katinkahesselink.net
A selection of articles on reincarnation and karma, by authors like H.P. Blavatsky, W.Q. Judge and others.
Reincarnation and Reimbodiment (Theosophy North West)
theosophy-nw.org
Articles on transmigration, pre-existence and similar topics.