Normally websites listed in Google's results pages are shown with a standard excerpt comprising two lines with a [...] at the end of the second line.
Occasionally Google allows the website a full sentence without a [...] and in these cases the excerpt or summary is typically limited to a single line. Why?
Also occasionally Google shows no excerpt at all. Why is this?
We're trying to rescue a customer from virtual invisibility on Google (up till now they have been nofollow, noindex). Wondering if the fact that Google only gives them a single line is a clue to how Google sees (or doesn't) this site.
Screenshots are just examples, these sites are not my client.