I've personally never received a copyright notice of my websites, but clients have and usually taken care of.
On the other hand, I've had a "Trademark Infringement" cease and desist before in regards to domain names I use to own, Keyword: "Use to". They legally stole them from me via UDRP. It questionable because the company who wanted these domain names, had deep pockets and everyone told me "They will win", but any "John Doe" can win a case with no money. (Submit documents for free) - but in this case the judge favored them. At one point I questioned the 'Judge' because the 'same name' kept popping up in the companies cases and always favored them, coincidence? Either he really found them in favor or he was in their pocket. (Domain Judges)
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