There are a number of other boards like this out there. Too many to count, probably. And the prices are all over the place.
I have used boards by drftech and edtp. The ones I have use AVR processors and can be reprogrammed (they can use the same code which is available as source). In fact, the drftech board is used as part of my a/v switch and provides an http (but not web) interface to it.
But it looks like their site is down. I believe they have stopped selling their board, or only sell one version.
The DRF boards has 4 optoisolated inputs and 4 relay outputs. It could easily control the coffee pot.
EDTP offers many boards with different procesors. I've used this one
. It runs $64 as a kit, $84 assembled. You would need to add a little additional circuitry to control the pot, but it's pretty much the same as described in the original link.
In fact, for those of you wanting to do this with HomeSeer, my script for interfacing with the DRF board in available on the HomeSeer boards in this thread:
Ethernet i/o board
And then there are always products like the stuff from Lantronix and siteplayer. Many, many options out there. Adding a web interface to any hardware these days is almost off-the-shelf.
The drftech web site is back. It looks like they are currently selling the board with the surface mount components preinstalled (the tough ones to work with) and the ethernet jack (which contains the "magnetics" and is not just a jack) for $45. The rest of the components need to be purchased separately but are all through-hole and easy to solder if you have some experience. This is actually how I bought my boards in the past.
With either the drftech or edtp boards, you would also need software and hardware to program the chips.