This tool allows you to see which witnesses an account is voting
for, and if it is a witness, which accounts are voting for it.
You can also see which are proxy votes.
The amounts are shown in millions of vesting shares
1 MV is approximately equal to 500 SP (Steem Power).
Clicking on the account name takes you to the steemit
account page, whilst clicking on the
icon shows the witness votes info for the corresponding account.
This data is collected on a weekly basis,
so may not always be perfectly up to date.