Copyright protects every print ad, jingle, and commercial you see. But the fair use provision in the law has been determined to allow some rather surprising things: one case found that using car manufacturer logos in an ad for an auto service station ("we specialize in...") was fair use.
No, it is not legal to use photos for advertising without permission from the copyright holder.
Ideas cannot be protected by copyright. If your idea is a new process, you may wish to seek patent protection for it.
Yes; logos and slogans are also protected by trademark law.
promotion, ADVERTISING, mass advertising,
advertising
Using the Snoopy graphic in advertising may require obtaining proper licensing and permission from the copyright owner, which is typically the company or individual who owns the Peanuts brand. It's important to check with the appropriate licensing authority or legal counsel to ensure compliance with copyright laws before using the Snoopy graphic in advertising.
Since names, titles, and common words/phrases are not eligible for copyright protection an advertising slogan could only be registered as a trademark.
it dose not actully where did you hear that
Very quietly and without advertising it, or your intentions of doing it, on a public message board. You do know that is against the law and you can be arrested for copyright infringement, right?
Advertising convinced consumers that they needed new products.
It depends on their line of business. Most companies will be creating documents such as brochures and advertising that would be protected by copyright, but may also include others' protected work such as images and even fonts. Other companies exist solely to license intellectual property; the biggest example of this is the Harry Fox Agency, which issues mechanical licenses for recorded music.
If you have broken copyright laws then it is correct that any promotion should be investigated. If you are trying to promote a product on Wikianswers then it is not a free advertising vehicle for your promotion, company or product.