What are the things that you find difficult/confusing about French?!
Whether you meant generally OR French grammar? If referring to the latter my personal opinion is the preposition agreeing with the verbs. For the tenses it won't be difficult to find on Internet. There are tons of data there. But experience is important, not picking a wrong tense.
A pronunciation section would be great. If you do add one, what would also be great is if the conjugations for the présent de l'indicatif could be pronounced, not just the infinitive. I can nearly always figure out how to pronounce the infinitive form: 'vouloir', for example, is easy enough, but how is the first person 'veux' supposed to sound? Same for 'connaître': do 'connais' and 'connaîssent' sound alike or does the latter end with a sibilant, etc. etc.
This is a great site--I've already found it very helpful, and I discovered it only a few days ago. Thanks especially for the help with 'quelques' and 'des' in another thread.