65 karma · joined March 31, 2007
For the most part, aggregators charge a monthly fee usually tied somewhat to system throughput. For example, OpenMarket charges $1500/mo for 10 messages per second outgoing and $20,000/mo for 100 messages per second.
On top of that, they charge for messaging. Rack rate in the US is often $.035 outgoing and $.005 incoming. At Twitter's scale, they're probably paying a fraction of a penny per outgoing message and have most incoming fees waived. Some of that is carrier specific however. T-Mobile often doesn't waive the incoming message fees.
We had some issues making it work and thought we'd save other people some trouble. Namely: GIS files and location polygons work terribly in mySQL (what we use for our other apps, this is on PostGres) and that other services that offer this information (and are free) are slow.
Also, a lot of people that are famous for "community work" are the last people you want to be working with in the trenches.
We've switched to Pivotal Tracker (also in free beta) and find it much more suited to rapid development and "agile" practices. In particular, we find the predictive tools actually useful.
1. The 4 books alone are worth almost $200
2. He's one of the most engaging speakers you'll ever see: you're ability to present will improve.
3. Book porn. He brings antique copies of Galileo and shows them off.
4. Inspiration.
The risk on the books of Bear Stearns can't be fully calculated and JP Morgan is assuming that risk, hence the low price. The Fed is possibly going to limit the downside risk of JP Morgan to keep stability in US financial markets, though they are not putting up any additional capital upfront.
Roger Ehrenberg has some great blog posts on the topic (he used to run a big hedgefund and now has an NYC startup called Monitor110):
http://www.informationarbitrage.com/2008/03/the-bear-facts.h...
http://www.informationarbitrage.com/2008/03/i-bear-ly-knew.h...
http://psdtuts.com/designing-tutorials/elements-of-great-web...
http://psdtuts.com/interface-tutorials/making-a-message-stri...
For screencasting: keep it under 5 minutes, use a script, read the FreshView Post: http://www.freshview.com/thoughts/2007/05/how_we_create_walk...
In terms of presentations, you can imagine combining live-action with infographics and a product demo. This is an involved process and requires production and editing knowledge. Fuel for thought--imagine taking Jonathan Harris' presentation of 20 minutes and editing it down to less than 10 with a focus on facial close-ups, infographics, and product demonstrations. http://www.ted.com/index.php/talks/view/id/144