<PAGE>

                                                                   Exhibit 3.126


ARTICLES OF INCORPORATION

STATE OF TEXAS

COUNTY OF HARRIS   KNOW ALL MEN BY THESE PRESENTS:

     That We, CHAS. N. TUNNELL, LEE M. WEBB, MAZIE WAY WEBB and RUBYE TUNNELL,
all citizens of Harris County, Texas, under and by virtue of the laws of this
State, do hereby voluntarily associate ouselves together for the purpose of
forming a private corporation under the terms and conditions hereinafter set out
as follows:

                                       I.

     The name of this Corporation is TUNNELL-WEBB PUBLICATIONS, INC.

                                       II.

     The purpose for which it is formed is to transact a printing and publishing
business, and in connection therewith, to sell goods, wares and merchandise of a
stationery and blank book manufacturing business.

                                      III.

     The place where the business of the Corporation is to be transacted is at
Houston, in Harris County, Texas, its address being 542 M & M Building, said
City, County and State.

                                       IV.

     The term for which it is to exist is fifty years.

                                       V.

     The number of directors shall be four and the names and residences of those
who are appointees for the first year are as follows:

Chas. N. Tunnell        806 Dennis              Houston, Texas
Lee M. Webb             5802 Goodrich           Houston, Texas
Mazie Way Webb          5802 Goodrich           Houston, Texas
Rubye tunnell           6501 Rodrigo            Houston, Texas

                                      VI.

     The amount of capital stock is One Thousand and No/100 ($1,000.00) Dollars,
divided into twenty (20) shares of Fifty and No/100 ($50.00) Dollars each, all
of which capital stock has been subscribed and fifty (50%) per cent paid in, as
per affidavit attached hereto.

     INTESTIMONY WHEREOF, we hereunto sign our names this the 18th day of June,
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1936.

                        (Signed)    Chas. N. Tunnell
                                    Lee M. Webb
                                    Mazie Way Webb
                                    Rubye Tunnell

THE STATE OF TEXAS

COUNTY OF HARRIS

     BEFORE ME, the undersigned authority, on this day personally appeared CHAS.
N. TUNNELL, LEE M. WEBB, MAZIE WAY WEBB, and RUBYE TUNNELL, known to me to be
the persons whose names are subscribed to the foregoing instrument and also
known to me to be citizens of said State, and each acknowledged to me that he
executed the same for the purposes and considerations therein expressed.

     IN TESTIMONY WHEREOF, I hereunto subscribe my name and affix the seal of my
office this the 18th day of June, A. D. 1936

                        (Signed)    R. Dyrel Kirk
                                    Notary Public, Harris County, Texas.

(Seal)

THE STATE OF TEXAS

COUNTY OF HARRIS

     BEFORE ME, the undersigned authority, on this day personally appeared CHAS.
N. TUNNELL, LEE M. WEBB, MAZIE WAY WEBB and RUBYE TUNNELL, known to me, who,
after being duly sworn, on oath, say each for himself:

     Thay they are the identical parties who executed the charter of
TUNNELL-WEBB PUBLICATIONS, INC., that the full amount of the capital stock of
said Company has been in good faith subscribed, and Five Hundred and No/100
($500.00) Dollars thereof in cash paid in, all of which cash is on deposit in
the name and to the account of said TUNNELL-WEBB PUBLICATIONS, INC., in the City
National Bank, of Houston, Texas; that the following are the names, residences
and postoffice addresses of the parties subscribing to the capital stock:


Chas. N. Tunnell        806 Dennis              Houston, Texas
Lee M. Webb             5802 Goodrich           Houston, Texas
Mazie Way Webb          5802 Goodrich           Houston, Texas
Rubye tunnell           6501 Rodrigo            Houston, Texas
<PAGE>

     That the amounts subscribed by each and the amount paid by each, such
payment being in cash, are as follows:

                        NO.         AMOUNT            AMOUNT
NAMES                   SHARES      SUBSCRIBED        PAID IN

Chas. N. Tunnell        5           $  250.00         $125.00
Lee M. Webb             9              450.00          225.00
Mazie Way Webb          1               50.00           25.00
Rubye Tunnell           5              250.00          125.00
                        --          ---------         -------
                        20          $1,000.00         $500.00

                        (Signed)          Chas. N. Tunnell
                                          Lee M. Webb
                                          Mazie Way Webb
                                          Rubye Tunnel

Subscribed and sworn to before me this 19th day of June, 1936, to certify which
witness my hand and seal of office.

                        (Signed)          R. Dyrel Kirk
                                          Notary Public, Harris County, Texas

(Seal)


Filed in the office of the Secretary of State June 23, 1936.


<PAGE>

                               The State of Texas


                               SECRETARY OF STATE

                            CERTIFICATE OF CORRECTION
                                       OF


                           TUNNELL PUBLICATIONS, INC.
                               CHARTER NO. 69746-0


The undersigned, as Secretary State of Texas, hereby, certifies that the
attached Articles of Correction, duly executed pursuant to the provions of the
Texas Miscellaneous Corporation Laws Act, have been received in this office and
are found to conform to law.

ACCORDINGLY, the undersigned, as Secretary of State, and by virtue of the
authority vested in the Secretary by law, hereby issues this Certficate of
Correction and attaches hereto a copy of the Articles of Correction.


Dated: June 26, 1996


                                                 Antonio O. Garza, Jr.
                                                 -----------------------
                                                 Antonio O. Garza, Jr.
                                                 Secretary of State

<PAGE>


ARTICLES OF CORRECTION                               FILED
TO THE                                               In the office of the
ARTICLES OF INCORPORATION                            Secretary of State of Texas
OF                                                   JUN 25, 1996
TUNNELL PUBLICATIONS, INC.                           Corporations Section


These articles are adopted to correct a document which is an inaccurate record
of corporate action, contains an inaccurate or erroneous statement or was
defectively or erroneously executed, sealed, acknowledged or verified.

ARTICLE ONE

The name of the corporation is Tunnell Publications, Inc.

ARTICLE TWO

The document to be corrected is Articles of Amendment of Articles of
Incorporation of Tunnell Publications, Inc., which was filed in the Office of
the Secretary of State on the 22nd day of April, q986.

ARTICLE THREE

Under the amendment to Article VI of the Articles of Incorporation was amended
to read as follows:

     "The aggregate number of shares which the Corporation shall have authority
     to issue is 1,000 shares of common stock at the par value of $5.00 each."

The par value of $5.00 was erroneously state and should be $1.00 par value.

ARTICLE FOUR

The amendment to Article VI of the Articles of Incorporation should read as
follows:

     "The aggregate number of shares which the Corporation shall have authority
     to issue is 1,000 shares of common stock at the par value of $1.00."



                                                 Raymond Anderson
                                                 --------------------------
                                                 Raymond Anderson
                                                 Secretary