Subject: On (topic/article title)
Hello (Webmaster),
I was doing some research on (topic) and I came across your page.
Noticed you mention one of my favorite references on the topic: [link].
I have applied its concepts in the past and found great success with
It.
I just published a more in depth, updated 500+ word article laying out step by
step how to (topic):
[link].
Might be worth a sharing with your audience.
Either way, keep up the great work.
I would be grateful to know what know what you think of my article.
Sincerely,
(Your name & Contact)