Greeting a person over the internet

Question

So I was wondering, how do japanese people greet each other when they are, for example, writing on a blog or recording a video? My doubt comes from the fact that their greetings will be directed towards someone who is unknown, and that the greeting will be seen on a unpredictable time. Someone who accesses the blog (or watches the video or whatever) could to that at anytime of the day. Does that even matter? Or one should take into consideration the time when they're are writing/recording? Or neither?

Answer 1

As a generic you can't go wrong with こんにちは. For example on Facebook or twitter I see posts by companies often that start with こんにちは. It depends on the context, of course, so if there's a situation where time of day is just understood then you can use that greeting. Or you can give a twist to it and start with ハロー！

Answer 2

Greetings on the internet are largely the same as those that would be done on the phone or in person.

こんにちは　with be fine for a friend etc
お疲れ様です　would be fine for a work colleage
はじめまして　for someone you are meeting of the first time.
うっす is even acceptable for very casual situations.

Answer 3

I　have seen some youtube videos that consistently begin with 「今日は今晩は」.

Answer 4

To be independent of the time of day (though こんにちは would generally be fine in internet conversations), another greeting you could use is

お元気ですか？ロドリゴです。

which is equivalent to "how are you guys doing? This is Rodrigo."

Answer 5

I've seen a few bloggers start with this generic combination of all three standard greetings:

おはよう、こんにちは、こんばんは。いつみてるか分からないから、あいさつぜんぶ。

Answer 6

A good reference for you would be a Japanese podcast.

Every Japanese greeting with new people, whether business, audience or casual encounter, involves,

1. Salutation Ex: こんにちわ、おはようございますetc.

2. Self introduction, where you belong, your connection to the group or what you do. Ex: ＡＢＣサイト中国語担当の田中と申します。宜しくお願いします。

Can you be more specific? Keep in mind, for every situation or season, there's a set routine Japanese people do things. Context is king in speaking Japanese.