What\'s a good way to survive abnormally high traffic spikes?
My thought is that at some trigger, my website should temporarily switch into a \"low bandwidth\" mode: swi
Put it in the cloud!
This probably isn't relevant for personal blogs etc but for bigger sites cloud hosting will solve this. Amazon EC2 for example, thing about this strategy is that it will cost you a ton of money.
On a smaller scale, using a CDN for all your images/static content might help a bit too, again evaluating the price is important. Amazon S3 is the CDN i hear about the most.