Collect a variety of websites that offer free Spanish language tools. Some good places to start include Learn Spanish Online, 123teachme, and SpanishPrograms. Be sure to check their links to other webpages that offer help with the Spanish language.
Select a small grouping of web pages that compose an assortment of styles that fit well with your desired mode of study.
Set goals for yourself and select a plan for studying. The biggest disadvantage of studying a language online is that you do not have a structured schedule or assigned tests. Setting goals and a study plan will help you overcome this. Many websites have suggested lessons and study plans that you should consult when constructing your own plan of study.