Your card doesn't appear to carry much value on EBAY:

http://www.ebay.com/itm/1-used-Newlife-Computer-Corp-Video-Controller-card-MAC-/160639677456#ht_500wt_1221

Not much on the web about NewLife Corp, but I do remember seeing their Ads in my ancient issues of MacUser magazine. All of those are back at home in California though so I cannot look up any info. I did find this:

https://www.ic.gc.ca/app/scr/cc/CorporationsCanada/fdrlCrpDtls.html?corpId=2563878

I also found the name Adam Chowaniec linked to the company Tundra, which bought out Newbridge Microsystems. From this 1990 Henry Norr article, it would appear that Newbridge had acquired NewLife Computer Corp at some point:

http://www.accessmylibrary.com/article-1G1-8772062/new-life-aging-compact.html

This old discussion thread (search for "newlife") mentions that Newlife Computer was based in Canada:

http://groups.google.com/group/comp.sys.mac.digest/browse_thread/thread/279f7c2e904f34e9

Since you have access to local libraries there in the US, finding additional information based on these facts should be easy. Too bad the info is not accessible via the net though.