The document discusses various online activities one can do with a computer, including sending emails, instant messaging, social networking, blogging, photo manipulation, online gaming, uploading photos, creating personal websites, watching videos online, ecommerce, online payments, online banking, online office tools, and voice calls over the internet. It provides tips for effective use of emails, instant messaging, and social networking. The overall message is that now with a computer, there are many possibilities for online communication, content creation, and accessing information through search engines on the internet.