I want to download music from iTunes using my iPhone4. But I encountered an error that say: “The iPhone “iPhone” could not be restored. An unknown error occurred (3194).” I want to access my iPhone again. What can I do to restore my iPhone 4 v4.3?

Can I use a single adsense account in multiple blogs? 

I own several blogs. I have 5 blogs all in all. I just got my adsense account and wondering if I can use these single account to all my blogs. Just thought that this technique will help me to earn more money. Is this allowed?

Best niche that doesn't need daily updates?
I know there are lots of niches that give profit. But in order to get on top and get a higher earnings, you need to focus and always monitor your blog. I'm a busy person and I can't promise to monitor progress of my blog regularly. I just want to ask what niche is the best for making a stable traffic even if you don't update regularly??

Tools to check my search engine rank.

I know we use tools to check our blog's PR.

I just wonder if there are also tools that being used to check ranks in a certain search engine like Google, yahoo and msn.

Can someone provide me the complete link?

Are there any tools to check my page rank?

I admit that bloggers are obsessed when it comes to their PRs.

I know they get traffic when their blogs got high PR's.

It's like a badge for bloggers.

Ironically, I don't know how to detect my own PR.

Are there any tools that can be used to get my current PR?

How can my site be indexed in search engines?

I found a basic blogging tutorial on how my site will be easily indexed in search engines. The tutorial from Techie Agent - Basic Blogging Tutorials is great. I easily understand what the author of that blog says. I've been searching more tutorials about indexing my page to search engines but I found out that most of the blogs offer same technique. I wonder if someone know more aside from the tutorial that I learned from Techie Agent's blog.

Why does I get PR2 to PR0?
Honestly, I am pissed off with this PR system. I'm frustrated to get higher PR2 because they say that it will help me to improve my blog especially with traffic. Unfortunately, I just checked my PR2 to blog if there are any progress but to my surprise it went down to 0. I'm so frustrated. I don't know if I did something wrong. What i only did is giving comments and linking my blog.

What is SERP and how it is important in SEO?
I also have question about SERP. What is the importance of this in SEO? Does it really play a big role in SEO? Can someone explain this to me?

What is KEI in SEO?
I'm new to SEO and most experts about this field always talk about KEI stuff. I'm really intrigued with this. Can someone explain to me what is KEI that we use in SEO?

After a recent mishap in Kamal Electrical Company Limited, one of its directors has suggested that the use of external storage devices should be prohibited altogether. However, the IT manager is of the view that this suggestion is not practical.

Required:

(a) Explain how you would justify the IT Manager’s contention.

(b) Identify the threats involved in the use of external storage devices and suggest steps to minimize them.