Assuming that there's an art department at your local college, contact professors for permission to audit classes, which will let you sit in on and observe classes without paying tuition and class fees. Many art departments offer free figure drawing classes as well, which are an excellent way to improve your figure studies and work on your sense of depth and proportion in a relatively unstructured environment.
Many community art spaces offer weekly classes, inexpensively or free, from visiting and local artists who donate their time. Community art spaces also often have figure drawing classes, and free open art spaces where people can utilize the studio space and resources for free at certain times of the week. If you don't have a community art space, check out your local community center for possible art classes.
Search your local library for books and DVDs that offer art instruction. There are many series of "How To Draw..." books, as well as technique-based books and DVDs on every type of artistic skill imaginable, from painting to metalwork. Ask a librarian to direct you to the art section of the library, and you're sure to find "How To" books in whatever area of artistic practice you with to pursue.
Find a wealth of artistic instruction and lessons online, offered for free at various websites. Search for "free art lessons" on any search engine and you'll turn up lessons on just about every artistic skill imaginable. Websites like Art Instruction Blog, Creative Spotlight and Art Graphica all offer tutorials and lessons by professional artists, for free. Use the Internet also to find listings of local classes in your community.