Are you using a custom-built solution, commercial products or a combination? I use this combination:
- iDisk for files. Any "reference" material I may want access to - documents for a project, receipts, confirmation emails, etc. - live on my iDisk. I've created a folder called "Reference," which in turn contains 26 sub-folders, labeled "A" through "Z" for simple alphabetical filing.
- Google Firefox browser sync handles my web bookmark synchronization. It's worked flawlessly since day one, which is a lot more than I can say for .Mac bookmark sync. All that's required is Firefox and a few minutes time for the initial upload to Google's servers.
- Highrise by 37signals manages my contact information, as well as conversations I want to save or that need follow-up. It's a terrific tool.