Dictionary links

WordReference.com – this is a wonderful online French-English dictionary

Linguee – this is another excellent French-English / English-French dictionary

Bon Patron – this will proof-read your work for you and help you identify mistakes

Help with French pronunciation:

SpeechGen – you can input text and it will tell you how to pronounce it (and you can even adjust the speed!!)
Narakeet
Readio