1. Blogs and wikis are examples of Web 2.0 technologies that can be used for e-learning 2.0. Blogs allow for collaborative learning through online journals while wikis enable group collaboration on shared documents. 2. The term "blog" originated from the words "web log" which referred to online journals where people would log or record their thoughts on the web starting in the late 1990s. Blogs have evolved to include various platforms like Blogger, Google, and Maktoob. 3. Learning management systems are still commonly used for e-learning but blogs, wikis, and other Web 2.0 tools allow for more social and collaborative online learning experiences.