The CashflowCop has put together an extensive and well-structured beginner’s guide to Financial Independence. It includes a calculator and also some thoughts that are interesting not only for newbies.
Many tips and links for newbies and if you are already into frugalism you can check if you can still optimize or find new ideas over at TuppennysFIREplace.
Did you think about the budget you will need per year from the day you retire until… well, you pass away? This is indeed a key question that every one of you should really think about! @thepoorswiss published this nice article about the topic. Enjoy