But what else can the web do for wholesalers?

No clue if the 3-day program is good or not but I would rather read books from the library, surf the web and learn from mentors. 

I've read a number of posts and web articles and seem to get varied information, as it relates specifically to selling vacant land.

You can look on your state real estate web page for one too.

The address, for the purpose of this discussion, is of the form:351-355 NE 4 STREET...This is how it appears on the county tax appraiser's web site.So there is a unique street number for each door. 

Please check the web site - National REIA for Local REIA;'sPlease be aware that some RE Guru's make Money in selling Courses & not from there success in Real estate. 

Here is their new web addresswww.relevategroup.com

However, the web tells me that sheriffs often are not privy to doing so.

Look for something where you can get the web URL. 

Tranquility XD is the brand from Lumber Liquidators 4mm Edgewater Oak Luxury Vinyl Plank (LVP) Flooring - 50 Year WarrantyThey talk about installing over Hydronic Radiant heating systems but nothing of concrete or wood subfloor.The web site does not have any information on the floor for underlayment specific.