| golang.org/x/blog/content/context/google | Package google provides a function to do Google searches using the Google Web Search API. |
| golang.org/x/blog/content/context/userip | Package userip provides functions for extracting a user IP address from a request and associating it with a Context. |
| golang.org/x/net/context | Package context defines the Context type, which carries deadlines, cancelation signals, and other request-scoped values across API boundaries and between processes. |
| html/template | Package template (html/template) implements data-driven templates for generating HTML output safe against code injection. |
| log | Package log implements a simple logging package. |
| net/http | Package http provides HTTP client and server implementations. |
| time | Package time provides functionality for measuring and displaying time. |