There is also a complete set of lectures by another one of Swami Dayananda's pupils - Swami Tadatmananda from the arsha bodha center.
The Gita Supersite has various translations and commentaries available, including the English version of Shankara's commentary.
Swami Krishnananda's translation, with summaries of each chapter and extensive commentary may be downloaded here.
A modern translation by Ramanand Prasad may be downloaded here.
The dvaita commentaries of Swami Prabhupada can be read here and chanting of the complete Gita may be purchased on CDs.
The International Gita Society has a comprehensive site with study lessons, stories and other scriptures.
A suite of hyperlinked study notes may be downloaded from the UK Branch of the Chinmayananda Foundation. These contain the complete text of Swami Chinmayananda's commentary and also show the Devanagari script for each verse. The package downloads as a zip file whose contents include an executable that sets up the files and installs the font. Excellent!
The Chinmaya Mission Chicago has a 'Guidance through Bhagavad Gita' consisting of a large number of short essays, sorted by topic (e.g. Meditation, Perfect Man, Spiritual Growth). Each essay is based upon one or more verses from the Gita and these are presented with Devanagari, transliteration and translation.
Acharya has a multilingual on-line Gita and a Sanskrit word list containing all words in the Gita with a reference to the verse(s) in which they occur. There are also 12 on-line lessons in real-audio format.
The 'pocket edition' of the translation by Swami Tapasyananda is available here.
Bhagavad Gita provides Sowmya's
'Essence of the Bhagavad Gita' (written or audio)
as well as discourses, summaries and many links.
Wikipedia has links to many more translations and other resources.
See also the Recommended Reading page for Bhagavad Gita.
The Bhagavad Gita forms a part
of the epic story 'The Mahabharata'. A summary,
stories, translations and articles may be found
online. There is also an ongoing translation
in simple English by M.V.Subrahmanyam at mahabharat_in_english.