The high tech stuff with annotated photos etc also sounds good, But I was thinking more of text files. I'm guessing those could be downloaded even when phone reception was bad and could be legible when printed on a bad printer etc etc.
I know many people have reams and reams of such text in their possession. Why not make it public just like videos are.
As an example of what I'm meaning, this is a short excerpt! of a beta text a friend wrote. He's advised me to modify it to the beta I'm trying.
1. Step off the rock on the floor using a RF toe hold and a crossly pinch undercut finger hold for the LH and a thumb in the upside down pocket for the RH, move the LF up to the lowest of three small edges. 2. Move the RH up to a triangular wide pinch above the pocket and use this to press leftward to a small sharp fin with the LH. 3. Step the RF up to the third of the previously mentioned small edges and then move the LF out to a small crossly nubbin which then allows you to 'flick' into the opposing and larger fin with the RH. 4. Step the LF up to a small but positive flat edge (possibly chipped) and paste the RF on something temporarily whilst gaining an obvious finger layaway/pinch with the LH. 5. Step the RF up to a very small triangular hold about six inches above and six inches to the left of the original pocket and step the LF out to an obvious small blackened square toe hold on the left wall. 6. Locking down on the LH layaway pinch, get a reverse press on the bottom of a small flake line and use this to lift the RF up to a much larger blackened triangular foothold just above. 7. Holding this position, move the RH from the reverse press to a pinch hold in the reddish chalky patch just above (two fingers in a shallow scoop/pocket and the thumb on the sharp sidewall). 8. Move the LH in to a sharp layaway directly underneath the RH pinch and then move the RF in, to a small black flat edge located between the two opposing fins previously used as handholds (a bit of hip flex required) and step the LF out to a square smooth well used foothold in the left wall. 9. You can now move the RH from the pinch to a sharp finger layaway (that forms the thumb hold on the previous pinch) and bump the RF up to the top of the small layaway pinch mentioned in point 6. 10.From these stable foot positions, move the LH out to a small but good crozzly finger layaway (feel around for the best bit) and then move the RH down slightly to a pinch at the top of the reddish chalky patch. 11. Move the LF out to the left hand end of the blackened dog-leg edge and brace with a right toe in the faint groove formed by the side wall of the reddish chalky patch. 12. At the bottom prominent flake line above, take the spragg with the right thumb and move the RF up to a higher bracing position and then take the first part of the main flake line with the LH (thumb pinched the front). 13. Change the RH spragg to a reverse press and move the LH further up the flake line to a good two finger recess near the top and move the RF up to a tiny black edge on the right (quick breather here), before moving the RH to the top of the flake line on a sharp reverse layaway directly above the LH. 14. Using this RH reverse layaway press leftward to gain a sharp pocket at the back of a small rooflet with the LH. Move the RF to share the 'dog-leg' edge and then step the LF onto the small black edge directly above the 'dog-leg' edge. 15. Leaning back on the LH finger pocket(in the rooflet) step the RF awkwardly 'through' to a blackened smeary toe hold and press on this to allow you to move the LF to a more positive edge further left. 16. From this position make a loooong stretch over the rooflet for a good finger hold with the RH and step the LF up to the higher of two smooth shallow pockets. Congrats you made it to the first bolt !!