Most Community Recognition: The first author listed has the most community recognition. (see: "Community Recognition" )
Most Referrals: The first author listed has referred the most members (see: "Referred Member Tracking" ).
Most Credited Reviewers: The first author listed has received the most credits from other members of the community through the public review page.
Most Active Reviewers: The first author listed has given the most reviews.
Most Active Raters: The first author listed has given the most ratings.

Most Recent Change First: The first (or last) author listed has changed his or her portfolio in some way most recently.
Most Referrals First: The first (or last) author listed has referred the most members (see: "Referred Member Tracking" ).
Most Items First/Last: The first (or last) author listed has the most items in his or her portfolio.
Newest Account First/Last: The first (or last) author listed has most recently created his or her account with first item.
Newest 1st Item First/Last: The first (or last) author listed has most recently created his or her first item regardless of account creation time.
Handle/PenName A to Z / Z to A: The authors are placed in alphabetical (or reverse) order by handle.
Username A to Z / Z to A: The authors are places in alphabetical (or reverse) order by username.
Most Viewed First/Last: The first (or last) author listed has the most portfolio views.
Highest Level First: The first author listed has the highest level on Writing.Com. (see: "Portfolio Icons" ).
Completely Random: The authors are chosen by the system and displayed randomly.