"At the present time, tarsnap does not support Windows... and does not have a graphical user interface." ... "[Tarsnap] attained profitability in February 2009.

"At the present time, tarsnap does not support Windows... and does not have a graphical user interface." ... "[Tarsnap] attained profitability in February 2009." This is really inspiring. Congratulations. Goes to show that if you make something genuinely useful, even non-paying computer users take out their wallets. Now for a few comments on the look of the site (which I think is pretty good overall, considering your current target audience). I suggest turning off the full justification in the text boxes. Ragged right lends itself to much cleaner inter-word spacing. Try to make the text boxes have the same margins on all four sides. With large top-bottom and small left-right margins, they look unbalanced. I personally would prefer a menu strip along the top of the page to the menu bar you have. Several reasons for this. One, there's a lot of wasted space below the menu box. Two, I am not a fan of the indented submenus. If you make a menu strip along the top with a secondary strip for the submenus, I think it would make the entire site look more balanced. You should even consider tweaking your content to eliminate the submenu altogether, although that may be easier said than done. If you can pull it off, though, perhaps by putting some pages together with others, you will make it easier to grasp the contents of the site at a glance. Finally, what is the proper capitalization? Is it "tarsnap" or "Tarsnap"? Make up your mind and be consistent. If you settle on "tarsnap", do not hesitate to use the lowercase form as the first word of a sentence. It's a small thing, but I think it clarifies the branding.