The "The 2013 Toronto Design Offsite Festival" fits this requirement.
TO DO, as it calls itself, celebrates great Canadian graphic and industrial design. It's an annual one-week festival, held at different venues in Toronto.
However, many of the exhibits remain available for up to one month.
My article points to their official web site, and highlights a few of the events that caught my eye.
Of course my Xanga blog also promotes that article, in "The TO DO Design Festival in Toronto"
The Design of a Writing Tip
Today I already had my topic. In fact, the article was about 80% complete before I alertly found a gem.
Whenever I write about a multi-faceted event, I prefer to mention a few details. In this case, I put the spotlight on an art installation and also on an educational workshop. (By the way, this workshop asks for "payment" by barter rather than money. That's very cool and worthy of further investigation).
I noticed another art exhibit because I like ash wood in furniture, and the name for that display was intriguing. Their blurb explained that they use wood from ash trees culled due to emerald ash borer infestations.
I'd written several articles on that very topic! This gave me the excuse to link back to my promotional post "Complementary Reports on the Emerald Ash Borer and Ash Trees" and to my news article "Emerald Ash Borer Closes Parks for Tree Removal in Oakville".
This well-designed writing tip encourages you to stay alert for sub-topics within your main article, especially when you had already written about the sub-topic. These provide opportunities for self-promotion and to demonstrate that you were ahead of the times back when you wrote the original report.