Source: scanned by maiyura. // CLICK HERE for the article text (an interview with Mitsuki Saiga), typed up by maiyura.

Image Cross-References: Newtype September 2004, a clearfile, and in the Daikenkyuu anime artbook.

Source: Scanned by yzak and fullmoon_san, respectively.

Image Cross-References: Daikenkyuu 2 artbook scans (textless!), a Frontier Works Series IV collectible card, and Newtype USA May 2006 (shown below).

Source: scanned by maiyura. // CLICK HERE for the text of the article (an interview with Tomo Takabayashi), typed up by maiyura.

Image Cross-References: Newtype November 2004 (seamless!), a clearfile (textless!), Region 1 DVD Volume 07, some Frontier Works Series IV collectible cards, and the Daikenkyuu artbook.

Source: Scanned by maiyura.
Continuing with the recent trend of dramatic instead of silly illustrations... Well, it fits the tone of the final episodes of the anime, anyway.

Image Cross-References: Daikenkyuu 2 scans (textless!), and a Special Carnival card.

Source: scanned by seer.
Part of a Valentine's Day special about the most desirable characters in anime. Or something.

Source: Scanned by maiyura and alphaDP.

Image Cross-Reference: Daikenkyuu 2 artbook scan, and a Special Carnival collector's card.

Source: Scanned by maiyura.

Image Cross-References:
First illustration: Newtype January 2005, and a Daikenkyuu artbook scan (textless!).
Second illustration: Daikenkyuu 2 artbook scan (textless!), Frontier Works Series IV collectible card, and Newtype February 2006 (shown above).

Source: Scanned by tinaeu.

Note: For more Hajimari no Tabi-related artwork, please visit the game artwork page.

Image Cross-References: PS2 game artwork - CP Plate Collection card. Cake-eating illustraion - Asuka October 2006 (textless!), and a DVD Collector's Card.

Illustration, special short story, and message card. // Image Source: Scanned by me.
It's nice to know that even late in the year of 2006 the franchise is still alive and going strong.

Image Cross-Reference: Daikenkyuu 2 artbook (textless!), Newtype Romance Winter AND Spring 2008, and a Carnival card (textless!).