Brett Hutley’s Blog

Daniel Tenner has written an interesting post on how to make you application viral.

The core model for viral growth is the following: viral coefficient = (average number of users invited by each active user) x (proportion of invited users that actually join or become active) x (proportion of such users that invite others). Daniel provides a checklist of techniques designed to optimize the viral coefficient. The general techniques are as follows:

• Make inviting people a core part of the process.
• Keep pulling people back in
• Be useful even if there are no other friends using the application.
• Remove artificial invitation limits.

Here is a video showing how badly Detroit has been affected by the collapsing housing market. Towards the end of the video you can see some amazing mansions in the worst-hit areas of Detroit that you can supposedly buy at a massive discount.

This is a rehearsal for the bar fight scene in the move "Serenity" (found via Reddit). I think this is actually better than the final scene in the movie.