Multiple language translations for comparison and search

http://al-quran.info

http://quran.com/

Word to Word Translation

http://www.quranmessage.com/

Arabic - English lexicons and Grammar (An immense resource library for analysis)

Lexicons

A high quality information portal for all those who wish to study the Quran

http://www.studyquran.co.uk/

'An annotated linguistic resource which shows the Arabic grammar, syntax and morphology for each word in the Holy Quran. The corpus provides three levels of analysis: morphological annotation, a syntactic treebank and a semantic ontology' [Site Description]

http://corpus.quran.com/

A Quran phonetic search

http://www.islamicity.com/PS/

Three popular translations compared (Yusuf Ali, Pickthall, Shakir)

https://www.usc.edu/org/cmje/religious-texts/quran/

Multiple English translations for comparison

http://www.islamawakened.com/index.php/qur-an

Word to Word Arabic-English translation by Zaheen Fatima Baig

http://www.quraninenglish.ae/contents.html

Quran Explorer (Audio, translations and more)

http://www.quranexplorer.com

An invaluable archive resource for historical literature. Useful for all types of academics, researchers, historians, scholars and general readers

http://www.archive.org