Here are some of my favourite things :

Humyo
So much more than online storage, free, personal and business accounts
Remember the milk
Interesting and useful way of keeping on top of to do lists, also available for gmail and mobiles!
Zoho
Offers many web based applications, many for free and some paid for. Worth a look.
Wufoo
What the wufoo is Wufoo, it's an easy way of making great looking and performing online forms of course!
Picnik
A great web based photo editing application. Integrates well with Facebook, if that's your bag.
YouSendIt
Share files with other people, great if you have limits on your email attachment size.
Lulu
Publish your ideas, make cash or buy someone else's creation!
A blog I like
I hate my job, but I don't really have it that bad!
Instructables
Interesting diy projects for the creative type!
freeimages
What it says on the tin.
todoist
Another useful to do list web site. I like this one best so far.
writetothem
Contact your councillors, MP, MEP's and Lords!
fixmystreet
A place to report problems in your area.
280slides
Create and share presentations!
JS-Kit
Rich, interaction features for your web site.
Emailmeform
Create forms for your web site!