This gist has been moved to its own Github repo, so it's easier to contribute with additions and corrections. Please open a PR there if you see any mistake, I don't track comments on here as there's no notification system for gists AFAIK. Thanks.

Tabs and Windows

Function	Shortcut
Previous Tab	`⌘`+ `Left Arrow`
Next Tab	`⌘`+ `Right Arrow`
Go to Tab	`⌘` + `Number`
Go to Window	`⌘` + `Option` + `Number`
Go to Split Pane by Direction	`⌘` + `Option` + `Arrow`
Go to Split Pane by Order of Use	`⌘` + `]` , `⌘` + `[`
Split Window Horizontally (same profile)	`⌘` + `D`
Split Window Vertically (same profile)	`⌘` + `d`
Split Window Horizontally (new profile)	`Option` + `⌘` + `H`
Split Window Vertically (new profile)	`Option` + `⌘` + `V`
Resize current splitted pane	`Ctrl` + `⌘` + `Arrow`
Set Mark	`⌘` + `M`
Jump to Mark	`⌘` + `J`

Basic Moves

Function	Shortcut
Move back one character	`Ctrl` + `b`
Move forward one character	`Ctrl` + `f`
Delete current character	`Ctrl` + `d`
Delete previous character	`Backspace`
Undo	`Ctrl` + `-`

Moving Faster

Function	Shortcut
Move to the start of line	`Ctrl` + `a`
Move to the end of line	`Ctrl` + `e`
Move forward a word	`Option` + `f`
Move backward a word	`Option` + `b`
Clear the screen	`⌘` + `k`

Cut and Paste

Function	Shortcut
Cut from cursor to the end of line	`Ctrl` + `k`
Cut from cursor to the end of word	`Option` + `d`
Cut from cursor to the start of word	`Option` + `Backspace`
Cut from cursor to previous whitespace	`Ctrl` + `w`
Paste the last cut text	`Ctrl` + `w`
Loop through and paste previously cut text	`Option` + `y`
Loop through and paste the last argument of previous commands	`Option` + `.`

Search the Command History

Function	Shortcut
Search as you type	`Ctrl` + `r` and type the search term; Repeat `Ctrl` + `r` to loop through result
Search the last remembered search term	`Ctrl` + `r` twice
End the search at current history entry	`Ctrl` + `y`
Cancel the search and restore original line	`Ctrl` + `g`

Bonus tricks

Name the current tab in iTerm. >

# Add this to your .bash_profile and then:
# $ title tabName
function title {
    echo -ne "\033]0;"$*"\007"
}