If you want protection to be applied to technology that didn't exist in the Founding Father's time, then do the honest thing and press for e.g. a constitutional amendment. Trying to stretch the Founding Fathers' words of over two centuries ago to your pet cause in 2014 is a can of worms that no one should want to open.
I see this same reasoning used by the anti-gun crowd. They want to say the Bill of Rights doesn't apply to things that didn't exist at the time the document was drafted. Let's take that to it's logical conclusion then, shall we?
The First Amendment states:
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
Using the "no unforseen technology" argument, that means the only thing covered by freedom of the press is exactly that. A hand-cranked printing press. That was the technology of the time. That's why it's called "freedom of the press." It gave people the right to print books and documents without the government having a say in what was allowed. Freedom of speech at the time was speaking in the town square without being arrested, or publishing documents via freedom of the press. Therefore, using any of these "new fangled" technologies to exercise your free speech is not protected, because they didn't exist when the Bill of Rights was drafted.
By your logic, telegraphs, radio, telephones, faxes, photographs, photocopies, computers, the Internet, etc. are not protected via the First Amendment, because those technologies didn't exist at the time, and could not have been forseen that long ago. So I guess we need an amendment to allow those things to be used as well? Unless you're saying that your argument only applies to your favorite amendments and not the others, in which case why even have the Bill of Rights to begin with, or indeed the whole Constitution?