Bible Gateway
This is one of the most informative sites I have used for References & Guidance to The Bible.
Quick search
Enter the Bible passage (e.g. John 3:16), keyword (e.g. Jesus, prophet, etc.) or topic (e.g. salvation) you want to find.
For more search options, try: Passage Lookup | Keyword Search | Topical Index
You can limit available versions in your Bible language preferences
Bible book list for your default version (New International Version).
New International Version is currently set as your default Bible version. You can change this and many other options in your Preferences