Just wondering if I'd have an issue with trademark infringement with a blog name?

The copyright notice really has nothing to do with trademark rights. Copyright protects creative expression, so things like written articles,...

Can I register a URL with the first domain name level, i.e. Web extension as the trademark of my e-company?

Inclusion of the extension depends on whether that is actually part of the brand meaning how your market identifies you. For example, About.com,...

Can I use the domain name technology.expert if there is technologyexpert.com already registered and operates as a company?

It certainly sounds very generic. But as noted, the nuances can make a difference if for example someone was operating for a long time under that...

We really can't address this here in a vacuum. If you believe this is a serious concern, I suggest that you consult with a lawyer in private...

So it's good you recognize the copyright aspect here. Whatever work you use must be original or properly licensed. Regards to trademark, you...

Is there a document / contract I can have a client sign releasing me and my company from any possible infringement disputes?

You can certainly have an indemnification in place that basically places the responsibility to ensure that everything is properly licensed, etc. on...

Before you take any action on your own, I suggest that you consult with a lawyer in private and discuss it all in more detail. You can start by...

What can I do to make this idea happen successfully ?

As noted, you would require a license to create the derivative work you allude to. Before you commit to anything further, I suggest that you...

What intellectual property rights are retained after sharing an image via private messaging.

The first question is making sure what you have is protected under copyright law and then whether you in some way even if unwittingly granted a...

Whats the average cost for a response to a cease and desist letter? Would I be able to respond on my own?

It is always best to get a proper evaluation when you receive a letter like this. At least get some insights first because at this point there is...