To an extent, I agree on the cog, it's far from great, but it's not openly offensive . If we can get everyone to use the cog, don't see why we cannot get everyone to use something else for a more complete logo, i.e. is there a logo which everyone uses for the words "RISC OS" as far as I know there is not, ROL have a couple:
[link] - Obviously no use for RISC OS 5 and RISC OS 6
[link] - basically a standard font with two rectangles of colour.
Castle don't use either of the above, so we don't have a united image at the moment. I don't see why ROL and Castle, and maybe ROOL could not chip in a third each and get a much nicer logo made, one which can be used for ROL's and ROOL's branch of RISC OS.
The websites are a much greater problem, but it's more difficult to fix that, as it requires time and effort, and I think it also requires RISC OS companies to "get with the times" which they are generally reluctant to do on all fronts, i.e. online ordering etc.