Ok, I do readings online....all kinds... <gg> bet you guessed that though.
The main difference from online and in person is that there is only you to handle and pick the runes. What I do is, cleanse and centre myself, and most importantly clear a space infront of the pc so that I can fit some runes along there <gg> then for chatroom or im readings I ask the querent to focus on me and their question and the runes, I describe the set I'm using, what they look like, how they feel and perhaps send a pic if I have one. This brings the querent into focus and lets them feel part of the reading. I then lay the runes face down and slowly run my hand over them and ask the querent to choose and say stop, this is the rune they have picked, carry this on for all of them. or you can ask them to choose numbers between 0 and 24 , 1 to 25 etc or however you number your runes and pick them that way.
For forum readings I centre myself and focus on the querents post, the request they have made and then link in. People do this is many ways, and we can go into this deeper if you like, or Earl will most probably in his classes later

Then I draw my runes and lay them and then type up the reading.
Its not hard, try and see. Starry is ready and waiting

And if you want I will be next xxx