There are many Italian speaking courses available online. You might choose one course that suits your requirement. Before you choose one you have to find out the features that are available online in that website to learn Italian. Apart from the text materials, there are also MP3 audio and video materials available. These should make your job easier.
You can also choose the level of the course that you want to undergo. If you are a tourist you might be content with some of the phrases that can be used while your travel. Similarly different levels are available for each person whether you are business traveler or want to live in Italy. Chat features are also available so that you can even with the Italian natives to get a feel of how you have learnt Italian. With this you can even get friends who speak Italian. These courses provide you information on the grammar, pronunciation, and vocabulary on Italian. Try them!