Explore postsecret.blogspot.com to find out how users can submit secrets, locate an 'About' section to understand the project's mission, and identify how to browse an archive of older secrets.
Navigate to 'postsecret.blogspot.com'. Look for a navigation menu, sidebar, or footer that contains links such as 'About', 'Submit', 'Archives', or 'Contact'. If an 'About' link is found, click it and summarize the project's mission. If a 'Submit' or 'How to Submit' link is found, click it and describe the process for submitting a secret. If an 'Archives' or similar link (e.g., by month, year, or category) is found, click it and describe how users can browse older secrets. If any of these sections are not explicitly linked, describe the most prominent navigation elements available on the homepage that might lead to such information.
Successfully navigate to 'postsecret.blogspot.com'. Identify and describe the method for submitting secrets (e.g., mailing a postcard, specific address). Locate and summarize the core mission or purpose of the PostSecret project as described in an 'About' section. Describe how users can access or browse an archive of older secrets (e.g., monthly archives, labels/categories). If any of the requested information is not found, explicitly state its absence and describe the navigation elements that were present.