The biggest advance will be the launch of PDAs that have wireless modems built in as standard. The Palm Pilot VII was the first, but surely not the last Web Device. One variant of mobile Web is the possibility for limited interaction on a cellular telephone. Of course a telephone will never be the same as a true PDA with a real screen, but they will still play an interesting role as a temporary solution in 2000. In general, the Web makes it easy to buy products from the cheapest vendor.
Advice is offered from one source and fulfillment is offered from another.
And the sites that offer different kinds of advice will make money from micropayments and affiliate programs. I expect to see physical experience environments that charge a fee to allow people to browse, see physical products, and try them out. Though I don't think unbundled physical experiences will be common until 2002 or so. The Internet infrastructure itself will keep running, but some individual websites will suffer Y2K problems . Too many sites run on software that has been patched together in a hurry without the oversight of a senior software architect.