Final answer:
The value of a website increases exponentially with the number of features.
Step-by-step explanation:
A characteristic of Web 2.0 is that the value of a website increases exponentially with the number of features. Web 2.0 emphasizes user participation and interaction, which means that websites that offer more features and functionalities tend to attract more users. As more users engage with the website and utilize its various features, the value of the website increases exponentially.