This is written as something I can point you to if you ask. If you've arrived here without asking how to contact me, it's something good to keep in mind! :)
There are several methods you can use to contact me, depending on how soon you expect a reply. Here they are:
Fastest
@ me on Twitter. I will reply in a maximum of 2-3 days, but usually (>90% of the time) within a few hours.
Slower
If you have my primary email address, you can contact me by email. This is also useful if what you need to tell me doesn't fit in 140 characters, however please expect a reply time of up to one week. Usually this takes anywhere between 1-5 days though. If what you've emailed me is very important, but had to be emailed as it's longer than 140 characters, please consider @-ing me a reminder on Twitter to speed up my email reply.
Note: My primary email address is NOT public, nor will it ever be. If I know you from somewhere else and you don't have it, ask me for it.
Even slower
Use the "contact me via email" link in the sidebar here on the right. This will require you to enter a CAPTCHA to be able to send me an email, BUT the address you will be sending it to is NOT my primary email address. Thus, expect even higher reply times, up to 10 days, but usually between 3-7 days. If you spam me on this address and I know you from somewhere else (say, Twitter), I will immediately end our 'relationship' in those places (again, such as unfollowing you on Twitter - or de-friending you on Facebook, etc.)
Even slower than that
Contact me on Facebook. I *very* rarely check Facebook, and most of the email notifications from Facebook I have turned off. So this is one of the slowest ways possible for you to contact me, but if you must, please expect a reply in 1-2 weeks, usually within one week.
If you decide to write something on my wall or comment to something I've posted on Facebook, please NEVER expect a reply. Don't get me wrong, I do appreciate comments on stuff I post, but I haven't yet found a way of seeing comments from a few days ago (nor have I tried very much, admittedly, because I don't especially like Facebook, but that's another story), and as I said before, I very rarely check Facebook.
Slowest
Contact me on any of the other social networks/media/sites/tools/whatever, all of which are listed at http://v-l-a-d.tel. Some of these I do check sometimes, others I may check as rarely as once in a year. Please don't take your chances here.
Note: Do not contact me via Google Reader. Please do follow me if you find what I share interesting, but use the "comments" section strictly for comments (which I do check once every couple of days). Messages directed at me using Google Reader's "social" features will likely get lost and I won't ever get to read them.
Impossible
My phone numbers are not public (on the Internet, at least). Even if you somehow manage to find them, I will NOT answer if you call me without previously arranging a conversation. And generally, if we haven't connected (by that I mean interacted in this context) heavily on social networks, I won't agree to a phone conversation. There are countless other ways you can get a message to me (see above?!) that are not as ego-centric as placing a phone call.
This also applies to Skype calling.
Also, any text messages I receive from anyone who is not a close friend in real life will be ignored.
IM: While I do have an account on all major IM networks, I log in (to all, thanks to Digsby) maybe once a month. Therefore, sending me messages via IM while I'm offline will most certainly mean I won't see them (this is heavily IM network dependant, and it also depends on Digsby's code, I won't get into more details here).
When I am online on IM and have the status of Available, feel free to talk to me. If I have any other status, please only contact me for urgent matters and do expect the possibility of me not being in front of the computer at that time.
My IM account details are, again, not public. Request them as you would my email address (see above).
Although it may not seem that way at first judging from what you've just read, I do consider myself a social person. I like people. And I believe in people (trying to make that a new religion). But for the best possible results, please do follow this guide. And you'll see just how charming and exceptional I really am :)