As mentioned in the Data#3 straw, scanning ASX announcements that are non-price sensitive when really they should be is easier said than done and is a nonsensical approach.
But I know the boss for Westferry Investments had started his career using this approach.
Currently there is no easy way of scanning for non price sensitive information which is why I give a pound of my flesh and maybe a kidney (or 2!)
Here's a few examples
Marketindex
Exclude price sensitive (price sensitive button disabled):

For this search, on the very last line is a price sensitive announcement for distribution estimate which is noise to me. So no joy here
Hotcopper
More promising...

But this filter does not work. Price sensitive announcements still appear in this search. Hopes dashed...
What options do we have?
Only one I could find are the ASX API endpoints. However it is a bit of work getting the data downloaded from the browser and formatting the JSON data into Excel CSV.
Plus I'm not sure how reliable it is given ASX does not like webcrawlers scraping their endpoints. There were some reports of these endpoints suddenly not working earlier this year when I did a search because they added additional authentication requirements to these endpoints.
Other tools include ASX Engine which is a search engine for ASX announcements, but you have to pay to get better searches and is sometimes a bit flaky. ASX Engine also does not have a non-price sensitive filter.
But as you know this information can be very lucrative if you have the right tool to search.
One example is Cassius Mining (ASX:CMD) where the mining minnow (Market cap $6.5m) recently announced a non price sensitive announcement that should be price sensitive


CMD rallied 20% to finish 1.2 cents.
If this claim in the London international court succeeds (an action which Ghana tried to block), the cash return to Cassius shareholders could be huge.
Easy 20 percent here if you saw the non-price sensitive news and got this early.