Online Store And Chexpress Run Coming To An End

For many years, Christa Semko has been providing us with chemical manufacturing news updates through her blog. For even more years, we've had an online store where you can purchase quality engineering calculations in MS Excel format. We'll be ending both of these features in 2015.

The online software store will close on June 30, 2015. So, please, if you want to purchase any of the titles available in the store, please do so as soon as possible.

ChExpress has been discontinued as of January 1, 2015.

OK...so maybe that's some sad news. I really enjoyed Christa's updates, but clearly there are many other sources of the same information available. We could have continued ChExpress, but really there are folks out there who do it better and faster than we could.


The online store has seen sales decline for the past 2 or 3 years. This was surprising to me...a little. I don't know exactly the reason for the decline, but they could include:

1. Folks moving to mobile applications and devices where macro-enabled spreadsheets either don't work or don't work well.

2. A general concern about the future of MS Excel which may be making people hesitant to invest money in a calculation stuck in that particular format.

3. A general need for these calculations to be cloud-based and accessible from any where.

What ever the reason may be, it's clear that our online store make little sense any longer.

Let me be clear about this though....just because these two (2) services are being discontinued does not mean that Cheresources.com is going away.

Rather, we're going to continue to be the best place for chemical engineers to come and discuss their technical issues among one another. That's what we're best at and that's what we're going to continue to do for our community members.

At this time, no other services are being considered for discontinuation.