Conversation so far:
When did the first series start?
After issue #99 (March 1968), the Tales of Suspense series was renamed Captain America.
An Iron Man story appeared in the one-shot comic Iron Man and Sub-Mariner.
What was the comic about?
metafictional story in which Iron Man visited the San Diego Comic Convention and met several Marvel Comics writers and artists.
Was the comic well received?
CANNOTANSWER.

Question: How did they proceed after releasing the comic?
Self-contained rewrite: How did Iron Man proceed after releasing the comic?