This is not a static page but a database query, listing all the active modules and themes.
If you are interested, the code to do this is here.
Active Core Modules
- block
- blog
- color
- filter
- help
- menu
- node
- path
- search
- statistics
- system
- taxonomy
- upload
- user
- watchdog
Active Added Modules
- admin_menu
- bloginfo
- contemplate
- content
- content_copy
- date
- daterange
- date_api
- date_timezone
- fieldgroup
- image
- imagefield
- image_attach
- link
- matrix
- nodeasblock
- nodereference
- nodewords
- number
- optionwidgets
- SEOChecklist
- systeminfo
- text
- update_status
- userreference
- viewfield
- views
- views_argument_api
- views_bonus_archive
- views_bonus_export
- views_bonus_grid
- views_bonus_summary_combo
- views_bonus_tag_cloud
- views_rss
- views_theme_wizard
- views_ui
Active Core Themes
- garland
Active Added Themes
- greenNblack