title: LINQ to SQL in 3-layer architecture
body: <p>I currently use the 3-layer architecutre (DAL, BLL, Presentation Layer).</p>
  
  <p>I am wondering how I can implement the 3 layers architecture using LINQ to SQL. I don't know whether LINQ should be in DAL or BLL. LiNQ seems the fusion of both DAL and BLL.</p>
  
  <p>Does anyone implement LINQ in 3-layer architecture before?</p>