You can browse your files on your PC from your PS3 using Apache Server (on the Apache folder in ur PC)
How can it be useful?
1- Browse your saved HTML/TXT files.
2- Save files to your Memory Stick/SD/CF if you dont have one.
3- I don't know what else
1- Download AppServ from (http://www.appservnetwork.com/) and install it on your PC.
2- Link your PS3 to your PC (Wired/Wireless LAN, I'm using wired though).
3- Go to Local Area Connection Status and go to the Support tab.
4- Copy the IP Adress and enter it on your PS3 Browser. (from your PC it's http://localhost)
Now you'll browse the "C:\AppServ\www" folder and everything inside it
If you click on files, it'll ask you to put storage media (flash/SD/MS/CF) and you can save to it without having adapter.