SLL:

Sierra Leone Leone
Small Lymphocytic Lymphoma
Shift Left Logical
Singly Linked List
Suomen Lukiolaisten Liitto Ry (Finnish: Union of Finnish Upper Secondary School Students)
Stop Look Listen
Side-Lobe Level
Standard Linear and Logic
Single-Loop Learning (learning within a paradigmatic context)
Sociedad Laboral Limitada
Service Language Layer (programming)
Stanford Learning Laboratory (Stanford University; Stanford, CA)
Sandia Laboratories Livermore
Statically Linked Library
Structured Lease Line
Secondary Lobe Level
Sims: Livin' Large (game)
Specified Long-Term Load (voltage)
Score Linked List
State Library of Louisiana

SMack loves liverwurst.

Sardines Liquify Loins

StatMan Laughs Last

Sipping Liquids Loudly

Sandra likes licorice.
Santa leans left.
Samurais like lotteries.
Sugars lurk luridly.
Shorelines last longer.
Sardines list limply.

That's all I got.