I've got the Powerbook 1400 hooked up to the Internet, and I have news. I can post with Movable Type, the blog software we use at the Daily News. The automatic links and HTML buttons (for bold, italic, block quotes) don't work, but it's easy enough to have pieces of dummy type set up to make the hand-coding of HTML easier.
Per the advice of System 7 guru Dan (system7today.com), I turned off CSS style sheets in both Netscape 4.78 and IE 5 (and iCab 2.99, from which I'm now posting to Blogger). So all that junk on the
sides of Web pages that often doesn't display properly on these old
browsers instead comes at the top of the main page's content (and comes down a whole lot faster.
I tried to do this post via Blogger's e-mail "bridge," which has worked for me in the past but didn't today. And it's not the Mac -- e-mails from PCs also didn't go through. Perhaps at some point, they all will bombard this blog, at which point I'll have to delete a bunch. It should be instant, at any rate.
Anyhow, as far as posting to Movable Type goes, it was smoother on IE 5 than on Netscape 4.78. I've gotta upgrade to Netscape 4.8 -- it's supposed to be faster, especially on PowerPC Macs. It's quite slow going with mail and newsgroups on 4.78. Of course, if I could get any other mail client to work in System 7.6.1, I'd be there. I don't know quite what it is, but I do know that if there's nowhere to list a mail server that's different from the SMTP server, it ain't gonna work, no way, no how.