Dear Bob, If I may add some food for thoughts here, an important problem with increasing presence in the virtual media and multiplying the amount of pages - although it is surely a nice spider web - is that of information dilution. Indeed, the more people contribute, the more the available richness of human experience and amount of details. But at one point, information will need to be pruned, synthesized, organized, and be made clear, straightforward, and easy to digest. If keywords and search engines indeed help, the end user is left too often with the amount of pages to read, of videos to watch, and the material limits that reality imposes on us cannot be reduced by the best advantages of the virtual reality. Therefore, placing information on the net is one point. Making it cognitively available is another point. If the challenge becomes too high for individuals to reach knowledge, they will not be able to make the effort or even know that they have to make it. This may be one point to consider when you examine the gain on membership rates. Christian