Advertise with The 51st

• Square graphic
• Should be at least 1000 pixels x 1000 pixels in order to appear crisp on large monitors
• Acceptable formats: .png; .jpg

These text-only listings include the same information as the curated, unpaid listings – with enhanced formatting and longer copy.

The customer should provide:

• an event title;
• a URL, which will be linked from the title;
• a description, 350 characters or less;
• a single address or a broad-strokes description, such as "Various locations near the National Mall";
• a single date and time or date range;
• a single ticket price or ticket price range or "FREE."

Headline/Subject line: 

• Recommended 40 characters or less (This limit guarantees full visibility on most email apps, browsers, and devices. But it is not a guarantee for all platforms.) 
• Recommended 60 characters or less (including spaces)
• The 51st will add "SPONSORED:" in front of your chosen text

Summary: 

• 1-2 sentences 
• Displayed directly under the headline, and previewed in inbox lists as the body of the message.
• Recommended 80 characters or less
• Maximum 145 characters possible (including spaces)

Image:

• Optional; One maximum
• Always displayed at the top, under the headline and summary but before the email body
• Dimensions:
• • 1000 px wide or larger
  • No taller than the image width
• No caption will be added unless provided by you (80 characters or less)
• Alt text will be added to note any text that is visible in the image, unless otherwise supplied by you.

Email body text:

• 250 words or less

Links:

• Only one URL per email
• Up to three instances: 
• • the image at the top
  • a button halfway (or at the top if there is no image)
  • a button at the bottom 
• Advertiser specifies call-to-action language for each button: 5 words or less

Standard Disclaimer: 

• Added by The 51st, appears at the bottom of the message
• Formatting: Italicized, separated from your copy with a horizontal line

Content: This message was sponsored by [CUSTOMER NAME] and sent to our free subscribers. Advertising is a critical piece of our funding that allows The 51st to continue serving you.

• Choose to post an original graphic, or re-share a Grid post from the customer’s Instagram account
• For an original image: A full-size Instagram story is 1080 pixels wide x 1920 pixels tall; or we can re-use a graphic provided by the customer for other The 51st ad channels (Website, newsletter, Instagram grid) – it just won’t fill the full “Story” space.
• We recommend leaving the top 150 pixels worth of space empty (other than background color/imagery) to accommodate The 51st’s account name that is superimposed by Instagram, and  the "Advertisement" label we typically add next to it. 
• The 51st is not responsible for any portion of your ad that is covered by the Instagram application’s default format. The 51st will place the "advertisement" label elsewhere if needed to accommodate your unique design, provided alternative space is available; otherwise a portion of your design will be eclipsed.

• In 2025, Instagram changed the dimensions of grid posts to be vertical rectangles: 1080 pixels wide x 1350 pixels tall. 
• Square will also be accepted by The 51st – they display fully in followers’ Instagram feeds but are partially cropped in the Grid view of The 51st’s account page.
• A standard “Advertisement” label will be added to the top or bottom of your image by The 51st.
• Provide up to 75 words of copy for the post’s caption, including your account @tag if desired. The 51st will add “SPONSORED:” in front of the text the customer provides.