Read the Quran
Quran.com: My favourite website to read the Quran and the translation is Quran.com
Listen to the Quran
Quranicaudio.com has lots of reciters with and without translation. A very popular reciter is Mishary Rashid Al Afasy.
Watch the Quran
TheMeaningofIslam has a growing list of Surahs being added to watch as a slideshow with audio translation.
Understand the Quran
Tafsir is an explanation of the Quran. The most popular and recognized is Ibn Kathir. Read the tafisr here.
Bayyinah: A project of renowned speaker Nouman Ali Khan, Bayyinah is a great way for students of Islam to understand Arabic and the Quran.