Every Monday on twitter, some of the community enter into marketing Monday. You might want to share ideas or ask questions. I run a marketing clinic for 30 minutes where you can message me your marketing challenge, all on twitter.
How can you use a platform like twitter to showcase your expertise?
How can you help or add value?
There's also a Mum's Monday and a Money Monday on twitter.
How about a Magic Monday, Web Wednesday.
Enough of the alliteration you could also run a Project Manager's Thursday.
Twitter gives you a chance to broadcast to and interact with that follow you, your constituency.
It's easy and simple, go add value.