As an AI language model, I can provide you with some examples of blog entries on digital communication that your students can write:

1. The Evolution of Digital Communication: From Morse Code to Instant Messaging This blog post can explore the history of digital communication, from the earliest forms of telegraphy to the latest instant messaging apps. Students can discuss the impact of technology on communication and how it has changed the way we interact with each other.

2. The Pros and Cons of Digital Communication This blog post can examine the advantages and disadvantages of digital communication. Students can discuss the benefits of being able to communicate with people from all over the world, as well as the potential downsides, such as the loss of face-to-face interaction and the risk of cyberbullying.

3. How to Communicate Effectively in the Digital Age This blog post can provide tips and strategies for effective digital communication. Students can discuss the importance of clear and concise messaging, the use of appropriate tone and language, and the need to be mindful of cultural differences when communicating with people from different backgrounds.

4. The Role of Social Media in Digital Communication This blog post can explore the impact of social media on digital communication. Students can discuss the benefits of social media for connecting with friends and family, as well as the potential risks, such as the spread of misinformation and the impact on mental health.

5. The Future of Digital Communication: Trends and Predictions This blog post can look at the future of digital communication and the emerging trends and technologies that are likely to shape it. Students can discuss the potential impact of artificial intelligence, virtual reality, and other innovations on the way we communicate and interact with each other.