I recently came across this great infographic that spells out several ways to improve your LinkedIn profile. Don't forget to upload a great professional headshot.
Modern website design can be a little hard to keep track of; the best practices for websites are constantly changing. Make sure your site is up to date.
If you haven't had a new business portrait done for a couple of years then it's probably time to start thinking about whether you need something new.
Professional speakers need new headshots and promotional portraits regularly because they are always being asked for images for use with their bios on conference websites, training handouts, and press releases.