Would not call it ultimate guide by any stretch
but
Satisfactory article for those not familiar with SSD.

Ultimate guide to SSDs (plus reviews of 7 new drives!

Installing an SSD in your PC, be it a laptop or a desktop, is one of the easiest and most effective ways to boost the machineís overall performance. The change won't be merely noticeableóit will startle you. Your system will boot more quickly, windows and menus will jump open, and programs and data will load much, much faster.

In case you donít know what an SSD is, the acronym stands for solid-state driveóthat is, solid-state as in no moving parts, and drive as in the fact that an SSD appears as a hard drive to your computer. But instead of storing data on one or more spinning platters, an SSD writes and reads data to and from nonvolatile flash memory. In addition, an SSD contains a controller that's analogous to the memory controller in your PCís CPU or core-logic chipset...


For full guide,