If you want to be notified, there's actually an honest to god old fashioned mailing list!
https://fractalsoftworks.com/lists/?p=subscribe
I feel like I should insert a meme of an old man shaking his cane at writing a .net app to scrape! 
Back in myyyy daaaaayyyy we had companies mail us when something happened, not have to do it ourselves like you crazy wippersnappers...
Haha, yeah unfortunately some companies (competitors) don't want you to know they have released new products/features on their website or tell you that they updated their prices.
So we used to have a web scraper that ran a bunch of URL's out of a config file, then it would dynamically scrape each paginated list of products. It would grab the HTML from source then use RegEx to just pull out the product code & price tags information. That would then get stored in a database for up-to-date competitor information.
We had a separate app that would load those prices for there products and then compare our equivalent prices for our SKU's.
Lots of product codes are the same even on different e-commerce sites, due to the code being set by the manufacturer, rather than the retailer.
The code wasn't particularly complex but it had quite a few assemblies and wasn't written particularly cleanly, so it could be tricky to work on, especially with using convoluted RegEx's. This was back in 2011, but I think that app still exists where I worked.
In terms of star sector it wouldn't even be 10% as complicated it would probably be about 10-15 lines of code.
But yeah an email is a lot easier! If not less fun
Side Note:
Be careful with web scrapers because we noticed if we scraped too much, it creates an obvious increase in traffic and they just block your I.P address. So we ended up running the scraper from an O2 dongle that used dynamic I.P ranges.. Sneaky, not sure if it was entirely legal but we didn't care at the time.
