diff --git a/doc/conclusion.rst b/doc/conclusion.rst
deleted file mode 100644
index e919cdf..0000000
--- a/doc/conclusion.rst
+++ /dev/null
@@ -1,14 +0,0 @@
-.. ############################################################################
-.. File  : doc/conclusion.rst
-.. ############################################################################
-
-**********
-Conclusion
-**********
-
-TODO
-
-
-.. ############################################################################
-.. end of doc/conclusion.rst
-.. ############################################################################
diff --git a/doc/index.rst b/doc/index.rst
index 33e3094..4a4ddea 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -19,10 +19,9 @@ Flibcpp
    \mainmatter
    \begin{abstract}
 
-This project uses SWIG-Fortran to expose useful functionality from the C++
-standard library to Fortran 2003 application developers. It generates
-self-contained Fortran modules with native proxy classes and functions
-which wrap the C++ library.
+Flibcpp uses SWIG-Fortran to generate native Fortran-2003 interfaces to
+efficient and robust algorithms and data containers implemented in the C++
+standard library.
 
 .. raw:: latex
 
@@ -37,7 +36,6 @@ which wrap the C++ library.
    conventions.rst
    modules.rst
    examples.rst
-   conclusion.rst
 
 .. ***************************************************************************
 .. APPENDICES
diff --git a/doc/introduction.rst b/doc/introduction.rst
index 4e0d160..5e5990c 100644
--- a/doc/introduction.rst
+++ b/doc/introduction.rst
@@ -6,8 +6,26 @@
 Introduction
 ************
 
-The purpose of this library is to provide access to efficient and robust
-algorithms and data types commonly used in scientific applications.
+The Fortran programming language includes many mathematical functions but few
+of the generic, high-performance software algorithms and data containers needed
+by essentially all modern scientific software. Most Fortran software contains
+hand-written code for such algorithms that may be burdensome to maintain and
+inflexible, as well as unperformant and erroneous under certain conditions.
+
+Flibcpp is a library for use by application developers that provides native
+Fortran interfaces to existing high-quality algorithms and containers
+implemented in C++ and available on all modern computer systems.
+
+Flibcpp defines a carefully crafted set of interface files written for the
+SWIG-Fortran code generator. These Fortran interfaces generate native Fortran
+proxy code that comprises a set of thin wrappers to selected functionality in
+the C++ standard library. The resulting code is a set of Fortran modules and
+C++ wrappers that expose a concise and well-defined interface that may be built
+into and distributed with the application.
+
+The generated modules include functionality for efficient generic sorting and
+searching, set operations, random number generation, value mapping, string
+manipulation, and dynamically resizing vectors.
 
 Installation
 ============
diff --git a/example/vecstr.f90 b/example/vecstr.f90
index df4a133..eb64e20 100644
--- a/example/vecstr.f90
+++ b/example/vecstr.f90
@@ -13,7 +13,7 @@ program vecstr_example
   implicit none
   integer :: i
   type(VectorString) :: vec
-  type(String) :: back, front
+  type(String) :: back, front, temp
   character(C_CHAR), dimension(:), pointer :: chars
 
   ! Print version information
@@ -36,25 +36,25 @@ program vecstr_example
   ! Get the final string for modification
   back = vec%back_ref()
   chars => back%view()
+  temp = String(back%str())
   ! Change all characters to exclamation points
   chars(:) = '!'
   write(STDOUT, *) "The last string is very excited: " // vec%get(vec%size())
 
-
-  ! *Copy* back string to front, and add a question mark
+  ! Modify a reference to the front value
   front = vec%front_ref()
-  ! XXX: this creates an *alias* rather than assigning values. Revisit
-  ! ownership semantics??
-  ! front = back
-  call vec%set_ref(1, back)
   call front%push_back("?")
+
+  ! Insert the original 'back' after the first string (make it element #2)
+  call vec%insert(2, temp%str())
+  ! Inserting the vector invalidates the 'chars' view and back reference.
+  chars => NULL()
+  back = vec%back_ref()
+  write(STDOUT, *) "Inserted the original last string: " // vec%get(2)
   
   ! Modify back to be something else. 
   call back%assign("the end")
 
-  ! Modifying 'back' invalidates the 'chars' view. Clear it to be safe.
-  chars => NULL()
-
   write(STDOUT, *) "Modified 'front' string is " // vec%get(1)
   write(STDOUT, *) "Modified 'back' string is " // vec%get(vec%size())
 
diff --git a/include/flc_string.i b/include/flc_string.i
index ba60d18..37443b4 100644
--- a/include/flc_string.i
+++ b/include/flc_string.i
@@ -66,7 +66,6 @@ class string {
   public:
     // >>> MEMBER FUNCTIONS
 
-    // TODO: add more constructors
     string();
     string(size_type count, value_type ch);
     string(const std::string& s);
@@ -92,7 +91,6 @@ class string {
     int compare(const string& OTHER);
 
     // >>> EXTENSIONS
-    // (TODO: add the same erase/insert extensions as std::vector)
 
     %extend {
       %fragment("SWIG_check_range");