This site has different lessons on various topics. This link is directly to the civics database portions. Lessons are correlated to standards and have supporting materials.
This is a great educational site for teachers to use when planning. PBS has topics for every subject area, but this bookmark is linked to Current Events resources.
TIME has all of the latest news articles. Almost everything that is printed in the magazine is also available online. It's a great tool to get students excited about reading the news.
CNN Student News is a simplified version of the biggest current news stories for students. Not only does it keep the attention of a high school student, but it is extremely relevant information. This is my favorite website!