I would suggest listing the records the player has attained on their hall of fame resume. Right now a voter would have to do a significant amount of research to find out if a eligibly player has set any marks. If a player set the single season record for batting average with a mark of .440, regardless of what his career average is, I would vote him in.
I would like to see if the player is in the top 5 of any record and what that is. It would change people's voting a significant amount if they discovered someone is #1 all time in HRs in a single season, as they wouldn't have known that before.

http://www.whatifsports.com/HBD/Pages/Popups/PlayerProfile.aspx?pid=426256
Perfect example. Guy who has 291 saves in his career, so maybe a little short of the HoF statistically, but has the top three slots for most saves in a single season.

Personally the #1 HoF voting improvement I want to see is that the voters should be allowed to choose what hat the guy wears into the Hall. If a guy plays 9 years with one team and 10 with the other, but he won 3 MVPs and a World Series with the former and nothing with the latter, obviously he had his Hall of Fame years with the other team. So why can't he go into the Hall with the team with which he was most remembered?

You get a message telling you to vote, isn't that enough of a reminder?

'tardcomm doesn't know how to read.  That's why he needs pictures.

Visual aids are an excellent way to improve comprehension and retention.