The Pimsleur Method is the most effective way to learn a language. Echo iPhone/iPod app takes the most important part, repetitive speaking, and puts it into a fun and useful tool.
Download lessons created by native speakers of the language you are learning. See a lesson »
Upload audio clips of yourself practicing and ask friends for feedback & help.
Pass your language tests with effective practice. Do better than classmates who practice with other L2 learners. Work on your accent neutralization. Pass the Diplomas de Español como Lengua Extranjera.