Micro uses a different CPU provisioning model than all the other instance types. While most instances have a guaranteed CPU allotment, micro instances do not. They can burst up to two ECU, but will eventually be limited to something around 0.1 ECU if you exceed the burst period.
That's not to say they don't have their uses, but they will not handle much traffic unless its heavily cached (but then you only have so much memory).
If you have a blog that is static and uses external js components for things like comments (disqus), you could use it in conjunction with cloudfront to handle quite a bit more traffic. Most traffic would be routed via cloudfront. Admin panel would be handled on a subdomain.
That's not to say they don't have their uses, but they will not handle much traffic unless its heavily cached (but then you only have so much memory).
If you have a blog that is static and uses external js components for things like comments (disqus), you could use it in conjunction with cloudfront to handle quite a bit more traffic. Most traffic would be routed via cloudfront. Admin panel would be handled on a subdomain.