Springpad
This is my new favorite bookmarking and note taking tool. I used to rely heavily on Evernote to keep notes and thoughts on various topics, as well as Google Docs for some other personal docs. Springpad has a clever thumbnail layout, the ability to attach images and links to a single note, and a nice Chrome extension.
Minus
This site is pretty fantastic. You can upload up to 5 GB worth of pictures. I really like how they let you organize albums and slideshows.
Box
I haven't completely given up using Dropbox but Box.com is giving me a big case to do so. The interface is very nice and the 5 GB limit by default is better than Dropbox's 2 GB.
BitBucket
Special thanks to Clark Sell for selling me on BitBucket (like what I did there?). I had heard about BitBucket before but never realized they were giving away free unlimited private repositories. At one point in time they only supported Mercurial but they now support Git as well.
AppHarbor
JC Grubbs told me about AppHarbor right before one of his talks on MongoDB. A Heroku alternative for .Net developers, AppHarbor makes this an amazing time to be a developer if you want to vet out ideas for web apps. Something I've been doing a lot of lately.
TeamBox
Free basic project management and task tracking. I tried looking at Asana as well but the lack of time tracking was a deal breaker.
Blogger
Unless I've copied and pasted this post blindly, you're reading this post on Blogger. I've played with Tumblr, Posterous, Weebly, LiveJournal, and Wordpress. Blogger is what I've decided to settle with (for now) when it comes to technical blogging.
Posterous
For non-technical blogging I prefer Posterous. They've done a lot of site upgrades recently and added some cool new features. I especially like how their layouts look if you like your blogs to have a lot of pictures. This made Posterous ideal for posts about my family.
ReapCast
There are a plethora of free blogs on the web that I'm interested in. I wrote this site to be able to track the ones I want to listen to as well as have DVR functionality to manage that last listening point I was at for each one, 30 second skip, 7 second rewind, slider time shifting, and synchronizing with my iPhone (which has all the same controls). Also included are bookmarks with note-taking. Coming soon will be different playback speeds.
Developer tools
JsFiddle - Quick and dirty way to test out some CSS and/or javascript.
Cloud9IDE - Web-based editor for javascript and Nodejs.
Chrome extensions
WhatFont - Hover over text and see what font it is.
EyeDropper - Hover over colors on a page to see the hex and rgb coloring.
SmoothGestures - I use the Back button a lot. With this I can hold the right mouse button and drag left to jump back in history.
Springpad Extension - Read my comments about Springpad above.
Web Developer - If you only install one extension, this should be the one.
Speed Dial 2 - Gives thumbnail previews of your favorites. For $1.99 one time you can sync your bookmarks across all your instances of Chrome.