My understanding of "published" is when it is made available (even to a limited audience) outside the creating organization or creator's immediate family (and in rare cases, also inside the organization). I do not know if you emailed a single copy to me if that would be considered "published," but sending copies to 10 friends would. Making it available on Panoramio would be a publication, but putting it on Google+ would depend on how it was shared.
About 25 years ago, I read an article by a photographer who took his copyright claim all the way to the US Supreme Court (and won). The argument by the defendant (Playboy Magazine) was that because he had the image on his business card without a copyright notice, he was not entitled to damages (but was entitled to the $25 fee). But the Supreme Court decided having an image on your business card was not a publication. I would have come to the opposite conclusion - most people with their own business are trying to get their cards into anyone's hand who might become a customer/client, so not only would I have called it a publication, I would have called it a broadcast.
To my understanding, the year is only important regarding when the copyright expires, and even that can be irrelevant. In the US, copyrights for work by individuals expire 70 years after the death of the author, so whether you include a date or not, the only date that will really matter is the one on your tombstone and the only people who are likely to care would be your grandchildren. Works for hire (i.e. part of your job in the corporate world and owned by your employer) expire 120 years after creation or 95 years after first publication, whichever is shorter - still not on my radar, probably not yours either.
The first few paragraphs of
http://en.wikipedia.org/wiki/Publication seem to suggest that sharing on-line with a very limited audience (i.e. immediate family) is not a publication, while making it available to the general public (Panoramio) is. Reading that article (which is specific to the meaning of publication as it relates to copyright) might give more info than you ever wanted.
Of course, internet legal advice is always worth what you pay for it. :)
Tom