Blogs and wikis are collaborative tools for communication and information sharing, with blogs allowing individuals to post and edit content on a website and wikis enabling multiple users to collectively create and edit interlinked web pages. Blogs are useful for personal branding, career enhancement, and engaging an audience, while wikis facilitate group projects through their open structure and version control features that record changes to content. Both tools combine elements of websites, newsletters, forums, and other media to connect individuals and foster discussion.