Well, I am looking for a cloud hosting company for my complex web site. I am not that experienced with servers beyond using Cpanel, etc. I am currently using Hostcolor for my shared hosting and they have been fine, I just do not know if they offer that great a cloud solution, partly due to their smaller size as a company.
As a result, I began to look at Rackspace, Liquidweb, Logicworks, Firehost, Hostway, Amazon's solution, etc. and the more I dig the more confusing it seems as to what they offer and what I would need ...
My priority is that I want fast page serving, and the ability to handle big traffic bursts nimbly. I intend to ramp up this site massively in the next six months with massive marketing and PR pushes and I do not want to get into the position where the site begins to look amateur due to slow loading.
My problem is that my web site has some very heavy php code that resulted in upwards of 15 second page loads (for a few of the key pages) on shared hosting. I do intend to at some point get a copy of the site onto a server with root access, maybe on my own laptop, so I can run some diagnostics to figure out where the slowdown is. I am guessing, based on other people's discussions on these boards, that the slow performance is due to the way Drupal loads each module individually (and I do have a LOT of modules, alas).