Chris Lema Is an Excellent Public Speaker

Chris Lema is a terrific presenter. I would recommend him highly for a WordPress presentation. I'm sure he has other areas of expertise to present on as well - such as how to do a presentation. Chris has some nice tips on his website: http://chrislema.com

With this slide Chris gives a wise warning about using GoDaddy as a server host.

Find Chris on Twitter @ChrisLema

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Taken at WordCamp LA 2011

WordPress.org Security - You Need It

If you have not yet secured your WordPress.Org site, you should.

 
Brad Williams @williamsba presented this at Boston Wordcamp 2010.
 
If you are using an iPad or for any reason this presentation is not showing on your screen. You can find it at slideshare.com/williamsba/wordpress-security-2982527

Some other useful links:
February 12, 2012 Securi Security
September 21, 2009 Otto
June 30, 2009 Chris Coyier
June 8, 2008 Donncha O Caoimh