Help! What ideas do you have to keep in contact with your Database?

I have recently started a database contacting system.  This is where I talked to people and then add them to my database and then do an 8 x 8 campaign to keep in contact with them.  But I am having a hard time finding the right things to say and do in the campaign.  Does anyone do this and do they have any suggestions?

Here are my catagories:

• FSBO 8 x 8
• Just Met 8 x 8 (people I met during the day)
• Not Met 8 x 8 (internet leads)
• Sellers (thinking about puting house on market)
• Buyers
• Investors
• Vendors (companies I work with 8 x 8 to get them knowing me and referring business to me)
• Other agents

Let's brainstorm together...here are some ideas I have already thought of:

JUST METS CATAGORY

• Week 1: send an email talking about how I enjoyed meeting with them and letting them know they can use me as a resource if they ever need any vendors
• Week 2: send an email talking about what I do and how I do business
• Week 3:  Give them a call to see if they received my information and see where they are with me.
• Week 4: Send an email with local weekend events in the area
• Week 5: News in the market
• Week 6: Call to check and see where they are.
• Week 7: Give home improvement information
• Week 8: Call and make a decision whether to keep or take off database than put them on 12 x 12 campaign

What other ideas do you have...Thanks for the support.  I am trying to work my business right and want all the ideas I can get.