PlayStation 3: Sony releases Firmware 4.86 for their 13 year old console - HFW 4.86 released, SEN Enabler updated & PS3HEN to be updated soon due to no kernel changes! - Wololo.net
PS3 Firmware List - PS3 OFW/HFW/CFW Firmware History
Surprise! There's a new PS3 firmware update - here's what patch 4.88 does | TheSixthAxis
PS3 firmware 1.80 to upscale your old games and DVDs [update] | Engadget
Sony PlayStation 3 Firmware 4.88 Download | TechSpot
PlayStation 3 Firmware 4.45 Bricks Some Consoles
PS3 News: Firmware 4.85 released and HFW 4.85.1 already released by Joonie allowing for unsigned code execution - Joonie recommends not to install FW 4.85 until all tools are updated! - Wololo.net
How to install Custom Firmware on the PS3 with FW 4.82 - Hackinformer
Sony PlayStation 3 60 GB Black Console CECHC03 Firmware 3.55 (FW 3.55) PS3 SACD | eBay