Pastehtml.com died shortly after posting this but I found a great replacement http://bo.lt and then Pastehtml came back. Pastehtml may or may not be currently be working; if it is working it has one minor advantage over bo.lt because it allows you to do anonymous pastes.
We are finally back. Our registrar Internet.bs has shut down the site for a week for abuse complaints. Suggestions?
— PasteHTML.com (@pastehtml) July 16, 2012
■ Online html editing. With pastehtml you can paste a permanent copy of your html (permanent as anything is on the ever-changing web): http://pastehtml.com/
Bo.lt does almost everything pastehtml does or did. With bo.lt you can upload html files and you can make a copy of any page from anywhere on the web. I had heard about bo.lt, but as a replacement it did not immediately come to mind, thankfully this page http://www.labnol.org/internet/archive-web-pages/20192/ alerted me to bo.lt.
Here's a bolt of the page responsible for my discovery: how_i_discovered_bolt. If you are experimenting with html this page is also useful: http://www.onlinehtmleditor.net/
■ Freeze a copy of a web-page: http://freze.it/
■ Image creation, photo editing: http://www.sumo.fm/#create http://www.sumo.fm/. Note also the free software GIMP.
■ Simple note pad: http://www.editpad.org/
■ Useful dictionary not usually displayed in search results: http://www.collinsdictionary.com/
■ Quickly choose colour codes: http://www.colorpicker.com/
■ Stopwatch timer: http://www.online-stopwatch.com/countdown-clock/full-screen/
■ World time-zones, current times: http://www.timeanddate.com/worldclock/
■ Virtual keyboard: http://gate2home.com/English-Keyboard
■ If you need to discover the true location of a URL then use URL X-Ray: http://urlxray.com/
■ Geometric shapes (includes html hex codes): Geometric_Shapes_Unicode_block
■ Remove line breaks from text: http://www.textfixer.com/tools/remove-line-breaks.php/
■ w3schools.com web tutorials: http://www.w3schools.com/
If you are looking for news about future tech I have aggregated some feeds here: http://singularity-2045.org/cuiptf.html. Finally here are two useful futurist G+ pages:
Add Post-Scarcity Warriors on G+
Follow Singularity 2045 on Google+