The following is a list of active SMF forums which boast a post count of over 500,000.
- WCRPG: 42,250,031 Posts in 903,152 Topics by 92,821 Members as of 5/2/2013
- Hogville: 6,783,483 Posts in 316,186 Topics by 25,572 Members as of 5/2/2013
- Italian Subs Addicted Forum: 3,959,424 Posts in 91,400 Topics by 312,947 Members as of 5/1/2013
- Simple Machines Community Forum: 3,336,714 Posts in 409,119 Topics by 315,108 Members as of 5/1/2013
- Chevy Avalanche Fan Club: 1,935,658 Posts in 116,115 Topics by 49,335 Members as of 5/2/2013
- Marlin Crawler: 961,874 Posts in 65,484 Topics by 18,548 Members as of 5/2/2013
- Perusing The Shelves: 519,311 Posts in 56565 Topics by 120,172 Members as of 5/2/2013