Here is a video of a presentation conducted by Cecilia Lemos wherein she describes many wonderful ways that Web 2.0 tools can be used to continuously assess English Language Learners. She also provides some great information on the differences between traditional and alternative assessments, for those who may not be aware. Namely, traditional assessment focuses on language, is teacher-centered, involves isolated skills, emphasizes product and one-way correctness. ALTERNATIVE assessment, on the other hand, focuses more on skills that native speakers of a language use everyday like COMMUNICATION. Alternative assessment is also learner-centered, involves integrated skills, emphasizes process, has multiple solutions and, most importantly, they teach us what students really know and what they can do.