The answer is brutally simple. One of those things so simple you don't
see it. Please allow me to explain...
This string: [ link:www.luckyeyesonline.com ] NO SPACE
returns results that --when you click on each result, has a LIVE
CLICKABLE LINK to the web site.
Check for yourself, and note the wording "linking to", and the fact
that the word LINK was dropped fron the description of the results:
Results 1 - 5 of about 6 linking to www.luckyeyesonline.com
In this case the LINK: is an operator (or command) telling Google to
search for pages with LIVE CLICKABLE LINKS to the site.
This string: [ link: www.luckyeyesonline.com ] WITH SPACE
returns results that include BOTH the word "link" and the "site URL",
--linked or not. The use of the space tells Google that you are
entering TWO SEPARATE words ("LINK" and "www.luckyeyesonline.com").
Google returns results with BOTH because the AND operator is the
Click below and note the snippet of the first result. It includes the
word LINK --referring to "cuff links"! Also note--on the few I
checked, although the site name "www.luckyeyesonline.com" is included
in the results they are not clickable links, but the letters
_www.luckyeyesonline.com_ --AND-- _link:_ appear somewhere on each
Results 1 - 16 of about 29 for link: www.luckyeyesonline.com .
Note the description above does NOT say "linking to"
Hope this explanation helps!