The Ocean Doctor is Twittering from aboard the Greenpeace ship "Esperanza." They're currently in the Bering Sea using submarines to explore undersea canyons. Follow along!

First, Twitter was a fun side project, then it was cared for lovingly at early writing about Twitter we had a hunch joining us. It's going to be fun.

On July 23rd immediately following the Youtube/CNN debate John Edwards will answer questions from Twitter users in a live webcast on johnedwards some questions in advance. Pretty cool.

Lots of folks have noted that there's too much overlap and confusion between "friend" and "follow." They both mean "I want this person's updates" so why do we need them both? Good point, it turns out we don't. As Twitter has evolved, these two concepts have emerged in parallel and clouded things up. So, in the spirit of simplification, we've made a change.

After careful consideration and user testing, we are no longer going to define people as your "friends." The functionality of adding people remains, but the interaction is focused on the term "follow" instead. We've also added a "notifications" toggle which allows you to turn on updates via SMS or IM on a person-by-person basis.

The new button for these features is prominently placed so it's possible you'll notice more folks following your updates. If you'd rather not be notified when you attract a new follower, you can adjust your account settings. Please try out the new functionality! Hopefully, you'll find it easier and more intuitive.

Dan from Wireless Is Fun has spotted However, when an explosion rocked Manhattan Howard turned instantly to Twitter, "No more joking about toilets. No more ambiguity. Lindzon uses the one tool he bashes and pokes fun at to inform and hopefully inform himself of a crisis situation."

It occurs to us that paying to have water bottled and shipped to our office when clean drinking water flows from the tap is silly, to say the least. In fact, some might even say it's socially, ecologically, and financially irresponsible.

• Many people suffer without access to reliable drinking water
• The bottled water industry creates lots of garbage and pollution
• Bottled water costs way more than tap water

However, it's important that folks drink water every day so we've devised an official Twitter, Inc water strategy. First, we stopped delivery of bottled water. Next, we're going to buy a Ethos water. Ethos works to help children around the world get clean water and raise awareness of the world water crisis.

I was proud and happy to wake up to the following email:

Good Day Jack,

I just wanted to take this opportunity to thank one of your employees, who has been helping me with a serial problem over the last few weeks. Her name is Contact us!

Robert Scoble wrote this message in the sand in Half Moon Bay, CA and twenty seconds later it was wiped away by the waves. Awesome, thanks Robert!

Twitter.com - 50 Best Websites 2007 - TIME

As you might imagine, there are lots of expenses associated with employees--salary, health insurance, etc. In the grand scheme of things, buying 10 employees a fancy new iPhone is not a gigantic expense. However, arriving at the office on a normal weekday and discovering a brand new iPhone waiting for you feels like an extra fancy perk. Speaking of iPhones, pockettweets.com is a cool web site designed specifically for the latest apple gadget.

Have you checked out our new Fan Wiki.