Five ideas to enable educators to develop and model a purposeful and professional digital footprint.
1-Model responsible footprinting with your own practices in blogging, commenting, social networking, and picture posting.
2-If you have established a professional blog, share it widely and proudly such as placing it in your email signature (if your employer will let you) and as Jeff Utecht suggests include your blog url when you comment on others blogs and in other forums. This enables others to see best practices and is a great way to get the conversation started.
3-Google yourself (aka ego surfing). If you have something posted online that you'd be uncomfortable having a current or future student, parent, colleague, or employer find, delete it (if you can) or request that it be deleted. There are ways an aggressive internet detective can still find this information, but most won't go through the trouble and the mere fact that you deleted it shows some level of responsibility.
4-If you do have online personal information and/or interests you wouldn't want discovered, use an unidentifiable screen name/avatar. This means you may need to update your screen name/avatar in your existing online presence.
5-Engage in the conversation and professionally comment, reply, and present online, onsite, and at conferences.

Personal branding and it's importance