rankings

I want to make some design changes to my blog to make it look more modern looking and maybe help it to load a little faster with a better theme. Will changing the layout of my blog hurt it's search engine rankings?

I was thinking about changing web hosts and was wondering if changing to a new web host will change or affect the rankings for my blog. Can I expect any kind of change or does it not matter if I change web hosting?

I have been thinking about redesigning one of my blogs and was wondering if I do some drastic changes will it affect it's SEO and rankings. Has anyone done this and seen any changes in their rankings either good or bad?

I was looking at the backlinks for one of my sites and going through to make sure there were not any bad ones. I haven't done this too much lately for my sites and with the Google algorithm updates lately I decided to start doing some checks again to make sure I don't get hit with an algorithm...

I never take any of the Google updates too seriously because they have never really had any kind of highly notable changes for my sites when they happened. Now that Google has rolled out the Penguin 4.0 (Real-Time Updating) I have started to see a big burst in traffic to all of my websites...