return from b in _datacontext.MemberBlogs
                   let cats = GetBlogCategories(b.MemberBlogID)
                   select new MemberBlogs
                   {
                       MemberBlogID = b.MemberBlogID,
                       MemberID = b.MemberID,
                       BlogTitle = b.BlogTitle,
                       BlogURL = b.BlogURL,
                       BlogUsername = b.BlogUsername,
                       BlogPassword = b.BlogPassword,
                       Categories = new LazyList<MemberBlogCategories>(cats)
                   };

(from x select new MemberBlogs).ToList()

[OnSerializing]
private void ExecuteLinqQuery(StreamingContext context)
{
    if (!SomethingThatIndicatesThisLinqQueryHasNotBeenExecuted)
        LinqVariable.ToList()
}