A Flickr approach to Making Sense of the World, from Rev Dan Catt of Flickr

Capacity Planning for Web Operations, from John Allspaw of Flickr

Grasping Social Patterns, from Christian Crumlish of Yahoo! Developer Network (from Ignite SF)

Tagging: Opportunities and Challenges of Scale, from Kakul Srivastava of Flickr

Also, be sure to check out CTO Ari Balogh's keynote in which he introduces Y!OS (the Yahoo! Open Strategy) and Neal Sample's deep-dive into Y!OS.

Yahoo! Live, our experiment in social broadcasting, has been blowing the doors off, hitting over a million users in its first few weeks. We've featured broadcasters ranging from rock stars (Motley Crue) to well-known DJs (Paul Oakenfold at the Winter Music Conference) to emerging stars like Sheena Melwani. Yahoo! Live can be purely entertaining, but it also touches people's lives in wonderfully unexpected ways. Just as one example, the deaf community quickly discovered Live and created the DeafRead channel, which has become an all-hours gathering spot for signing and chatting (reading this testimonial really warmed my heart). Yahoo! Live has become a truly meaningful "third place" for all types of social interactions. With a full-featured developer API, developers can build their own experiences around the Live platform, too.

Fire Eagle launched as an invite-only developer beta barely six weeks ago and is building momentum as we move towards a general release (request an invite at the Fire Eagle home page). On the day we launched, Marshall Kirkpatrick at ReadWriteWeb wrote: "Standards based platform plus strong privacy equals the best scenario I can imagine for a location tracking service. We'll see what kinds of innovative applications get built on top of it." Well, the developer community has responded with enthusiasm and new applications are emerging regularly. If you have an invite, you can already leverage Fire Eagle in a growing gallery of applications including Dopplr, Firebot, Dashboard widgets for OS X (dmg file), Loki toolbar for IE/Firefox, a Movable Type plugin, Navizon, Wikinear, and ZoneTag. Aside from the applications listed in our gallery, many other developer partners have integrated with Fire Eagle or will be integrating soon: Plazes, Outside.in (details here), Lightpole, Rummble, plus many more in the pipeline. If you would like to become a Fire Eagle developer, join the developer group.

We're excited about Yahoo! Live and Fire Eagle, and this week's Web 2.0 Expo (taking place just down the street from us at Brickhouse in San Francisco) gives us the perfect opportunity to thank the communities who have helped these projects do so well in their first several weeks, so we're throwing a party in the Brickhouse space as part of the "South Park Crawl." Just RSVP on Upcoming or show us your Web 2.0 Expo pass to get in. The Fire Eagle and Live teams will be on hand and we'll have loads of Fire Eagle invites, a couple of our favorite DJs from Yahoo! Live, and plenty of beer. Be sure to use Fireball "Web 2.0 Expo edition" (a Fire Eagle / Twitter / Upcoming app that just launched last night!) to find out where your friends are during the show.

Thank you for using Fire Eagle and Yahoo! Live, and see you at the party!

In this video, Tom Coates describes some of the first Fire Eagle apps that are emerging, like an integration with Dopplr and a plugin for Movable Type, and shares ideas and imaginings for new location-aware services.

There are three types of Pipes badges you can add like widgets to your webpage or blog: the map badge, when there's geocoded data; an image badge that includes slideshow functionality; and a list badge, for all other valid data. Help us spot the first generation of creative Pipes badges out in the wild, by posting your badge sightings and URLs in comments here. Read more about this release or watch this video introduction:

But the race between Obama and Hillary Clinton is very close. No matter what happens in Pennsylvania or any of the other remaining states, neither candidate will have clinched the nomination when all the voting is finished in June. The next presidential candidate will be determined by the remaining Democratic superdelegates.

No matter who is chosen, it will be a proud and groundbreaking moment for the United States. If a Democrat is elected, the next US president will be either a woman or a black man.

If you were a superdelegate, how would you vote? The Yahoo! Media Innovation Group has built an app called Be a Superdelegate, which runs on both Facebook and MySpace. It lets you cast your own superdelegate vote and show support for your presidential pick by putting a virtual campaign button on your Facebook or MySpace profile page. What’s especially fun about the Superdelegate app is that a vote you cast on MySpace will appear on Facebook and vice versa. Like the Texas prima-caucus, you can even vote twice – once on each network.

Earlier this month, MySpace went live with their application platform, which supports OpenSocial. Now we’re starting to see the emergence of cross platform social apps – a pretty cool development. Could it be that leading Internet companies large and small can work together and share content and data to make the Web a better place for everyone? Yes we can. Yes we can.

Be a Superdelegate today!

Hillary Obama battle by mr_magoo

Be a Superdelegate is an app that runs on either Facebook or MySpace and lets you cast your own superdelegate vote. Follow the results of all superdelegate voting in real time on our interactive map and show support for your favorite candidate by displaying their badge on your profile page.

Don't let your candidate lose this all important superdelegate race! Add this app today and get your friends to vote too!

Who built it

• William White
• Lucas Shuman
• Joseph Magnani

How do I get it

• Be a Superdelegate on Facebook
• Be a Superdelegate on MySpace

According to the documentation: "You can query our streaming servers to find people broadcasting on Yahoo! Live as well as information about those broadcasts and the people that are viewing them... Use this API to mashup broadcasters, coviewers, and anything else on the web that might be relevant."

That's just what Premasagar Rose did this weekend at Barcamp Brighton. He and some friends used Y! Live to stream sessions at the 48 hour unconference for " for designers, developers, geeks, social softies & ui freaks" on the south coast of England. After first using Y! Live last month at SemanticCamp in London, Premasagar and friends decided to add some "rudimentary group functionality" to the streamed conference experience. It's a great step forward for the socialization of Live! YLiveGroups is Greasemonkey script you can install in your Firefox browser. Then you see the names of the coviewers on a channel or a associated with a specific event displayed in the masthead at the top of the webpage where the player is streaming.

Live has been live for less than two months now, so it's exciting to see folks from the UK web community embrace and extend the social TV experiment.

Fire Eagle plugin for Movable Type

Meantime, closer to home, Ben Trott, Six Apart co-founder and creator of Movable Type, has been hacking on the Fire Eagle APIs, released just over a week ago. Fire Eagle is a system that brokers location information, designed to help people safely share information about where on earth they are with sites, services and people on the Internet. Ben's hack is a Fire Eagle plugin that makes his Movable Type profile location-aware. He can map his current location and update location changes on his Action Stream. Also, other Movable Type plugins can build off of the FE location plugin to add new location-sensitive features.

To see Ben's plugin implemented with the Activity Stream, check out David Recordon's site. David is a tech guy at Six Apart and he got in touch because he wanted us to know about what they'd built lately with Fire Eagle.

If these bright new APIs can generate such early enthusiasm and propagate themselves among developers and tinkerers—then a Brickhouse spring must be just around the corner.

You can watch the video, thanks to the generous permission of the Paris Web 2007 conference organizers.

Or take a quick trip through Chris's presentation, thanks to SlideShare.net:

| View | Upload your own

Fire Eagle is the secure and stylish way for anyone to share their location with sites and services online. We want to make the whole web respond to where you are, and to help you discover more about the world around you, whether you're in Berkeley or Ulaan Bataar.

If you're a developer or geo-hacker who wants to start building an application powered by Fire Eagle, please come join our developer group and check out the documentation on the Yahoo! Developer Network.

And if you want to learn more about Fire Eagle and how it came about, here's a video of Tom's presentation:

On Monday at 1:15pm, Ian Kennedy will introduce Yahoo!'s MyBlogLog API: A Social Network Lookup Service in San Diego Ballroom B. At 1:30pm, he'll join panelists from Google, FriendFeed, Six Apart, and mSpoke, to discuss Social Networks and the Need for Feeds.

Meantime, over at ETech, food-hacker and engineer Marc Powell will present a tutorial called Kitchen Hack Lab in Marina Ballroom E at 1:30pm.

On Tuesday at 11:50am, in Marina Ballroom D, Elizabeth Churchill, from Yahoo! Research, will give a talk titled Users, Socializers, and Producers: How Internet Technologies are Changing Our View of Ourselves.

Stay tuned for later in the week; we've got something mythic in the works.

The Yahoo! Developer Network is sponsoring both these events. You'll know us by our mugs at the GSP Monday morning coffee break, at ETech we'll be at Booth #9. Stop by and say hello if you're in town, otherwise, check in at the Yahoo! Developer Network theater for ongoing video highlights, interviews, and coverage from GSP and ETech.

Yahoo! Developer Network Mixer photo by Jeff Kubina (2006).