Zodiac Club - post the first Saturday each month
TUSAL or Totally Useless SAL - post your ORTs on the New Moon each month
IHSW - 3rd full weekend of each month
As well as SALs I also host 5 blog hops a year. You can read all about them here and I have listed them on this post too:
In February we will have the Secret Stitching Sweetheart for Valentine's Day - send me a suitable picture and I will forward it to another participant, hop around the blogs to see who got your picture.
At Easter it's the Easter Treasure Hunt - sign up and be allocated a letter, post a picture and your letter at Easter, hop round the blogs (like an Easter Bunny) and find the Mystery Phrase.
During the whole of the Summer we usually have the Summer Postcard Hop - send me a picture for a postcard plus a holiday message, I will forward it to another participant, hop around the blogs to see who got your postcard.
At Hallowe'en it's the Trick or Treat Mystery Phrase - same as Easter but spookier!
During Advent I will host our Calendar - sign up and be allocated a dated door, post a picture on your day and add some information about your Christmas traditions. I copy the pictures onto my blog so we have the full calendar for everyone to see.