This is a recent presenation I gave on the "3 P’s of WordPress Site Structure for SEO". Remember to also download my free "13 Pillars of Internet Marketing" eBook from http://www.13pillars.com.
44. * Find a reliable host
* Consider HostGator, Hostmonster, Vidahost and
WestHost as shared server hosts
* VPS.net is a scalable cloud server worthwhile
considering for bigger tasks
45. * Efficient coding
* No index, nofollow archive posts and pages
* A good theme like Thesis will generally do this
* 301 redirect unwanted yet ranked old posts to
relevant newer posts
48. * Test and refine
* Increase speed
* Direct search engines
* Conversion optimization