InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
  • InkFrog is shutting down June 1, 2026  ·  Last day to export your data: May 31
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Jack Blum

Jack Blum

Jack has been selling on eBay since 2002, with deep roots in the automotive and DTC space. His experience comes from running real operations at scale, managing complex parts inventory, fitment accuracy, and customer expectations. He shares practical insights based on what actually works for long-term growth on eBay.

Articles by Jack Blum

Rhinestone brooch pearl necklace and cocktail ring on navy velvet tray with handwritten price tag and eBay sold listing on phone

Jewelry & Watches

2 min read

Selling jewelry on eBay vs Etsy: the platform decision that changes your margins
Selling jewelry on eBay vs Etsy: the platform decision that changes your margins

by Jack Blum

May 21, 2026

Man leaning over open plastic bin in liquidation warehouse holding an unboxed Bluetooth speaker to check for damage

Seller Journey

2 min read

Bin stores near me: how they work and what to know before you go
Bin stores near me: how they work and what to know before you go

by Jack Blum

May 21, 2026

Ryan Cohen discussing GameStop’s potential eBay strategy and future marketplace vision during recent media interviews

eBay Updates

11 min read

Ryan Cohen’s eBay Interviews Explained: What He Said, What He Avoided, and Why Sellers Should Pay Attention
Ryan Cohen’s eBay Interviews Explained: What He Said, What He Avoided, and Why Sellers Should Pay Attention

by Jack Blum

May 10, 2026

InkFrog export crashing warning with eBay data migration path to MyListerHub

eBay Updates

7 min read

InkFrog Export Crashing? How to Save Your eBay Data Before the Shutdown
InkFrog Export Crashing? How to Save Your eBay Data Before the Shutdown

by Jack Blum

May 7, 2026

eBay sellers networking at a small in-person conference event with name badges and eBay branding visible on screen at the front of the room

eBay Updates

2 min read

eBay Open 2026 On The Road schedule: dates, cities, and what to expect
eBay Open 2026 On The Road schedule: dates, cities, and what to expect

by Jack Blum

Apr 24, 2026

eBay seller reviewing sell through rate data in eBay Seller Hub analytics dashboard on dual monitors in a home office

Selling Strategies

2 min read

eBay sell through rate: what it actually measures and why most sellers are only using half of it
eBay sell through rate: what it actually measures and why most sellers are only using half of it

by Jack Blum

Apr 17, 2026

manage multiple eBay accounts

Growth & Operations

2 min read

How to Manage Multiple eBay Accounts Without Getting Suspended
How to Manage Multiple eBay Accounts Without Getting Suspended

by Jack Blum

Apr 7, 2026

Tariff Refund for eBay Sellers in 2026:

Education & Guides

2 min read

Tariff Refund for eBay Sellers in 2026:
Tariff Refund for eBay Sellers in 2026:

by Jack Blum

Mar 18, 2026

How to Make Your Book Store Profitable on eBay

2 min read

How to Make Your Book Store Profitable on eBay
How to Make Your Book Store Profitable on eBay

by Jack Blum

Mar 12, 2026

How to Block eBay Buyer?

Education & Guides

Listings & SEO

2 min read

How to Block eBay Buyer?
How to Block eBay Buyer?

by Jack Blum

Mar 12, 2026

Moving from Amazon to eBay

Growth & Operations

Education & Guides

2 min read

Moving from Amazon to eBay
Moving from Amazon to eBay

by Jack Blum

Mar 12, 2026

Shipping Supplies for eBay - What Supplies to Buy

Branding & Design

Growth & Operations

2 min read

Shipping Supplies for eBay - What Supplies to Buy
Shipping Supplies for eBay - What Supplies to Buy

by Jack Blum

Mar 12, 2026

Top 10 Shipping Supplies Companies for eBay

Automation & Productivity

Education & Guides

2 min read

Top 10 Shipping Supplies Companies for eBay
Top 10 Shipping Supplies Companies for eBay

by Jack Blum

Mar 12, 2026

Using Terapeak in 2026 to Scale Your eBay Store

Education & Guides

Automation & Productivity

2 min read

Using Terapeak in 2026 to Scale Your eBay Store
Using Terapeak in 2026 to Scale Your eBay Store

by Jack Blum

Mar 5, 2026

Central dashboard controlling auto parts inventory, listings, automation, and orders

Auto Parts

Automation & Productivity

10 min read

The Best Software to List and Sell Auto Parts on eBay in 2026
The Best Software to List and Sell Auto Parts on eBay in 2026

by Jack Blum

Dec 5, 2025

Auto parts seller comparing a messy eBay fitment table with returns to a clean, accurate compatibility screen with positive results.

Automation & Productivity

Auto Parts

13 min read

Where Most Auto Parts Sellers Get Fitment Wrong on eBay (And How to Fix It in 2026)
Where Most Auto Parts Sellers Get Fitment Wrong on eBay (And How to Fix It in 2026)

by Jack Blum

Dec 5, 2025

Split scene hero image showing a stressed local auto parts store owner on the left and the same owner confidently running a warehouse with online sales on the right

Growth & Operations

Auto Parts

12 min read

Selling Auto Parts Locally vs. on eBay in 2025 (What Most Sellers Never Calculate)
Selling Auto Parts Locally vs. on eBay in 2025 (What Most Sellers Never Calculate)

by Jack Blum

Nov 19, 2025

High contrast close up of sleek software panels showing automated eBay listings for car parts on a dark background

Growth & Operations

Auto Parts

12 min read

Why Every Auto Parts Business Should Be Selling on eBay in 2025 (Real Market Insights)
Why Every Auto Parts Business Should Be Selling on eBay in 2025 (Real Market Insights)

by Jack Blum

Nov 18, 2025

Workspace with laptops showing eBay fee reports, profit charts, and packaging tools for online sellers

Selling Strategies

Education & Guides

8 min read

10 Loopholes to Pay Less in eBay Fees (Without Breaking the Rules)
10 Loopholes to Pay Less in eBay Fees (Without Breaking the Rules)

by Jack Blum

Jul 11, 2025

MyListerHub team discussing AI features with sellers during eBay Open 2025 in Las Vegas
play

eBay Updates

AI & Machine Learning

7 min read

What’s New at eBay Open 2025: AI Tools, Live Commerce & More
What’s New at eBay Open 2025: AI Tools, Live Commerce & More

by Jack Blum

Jul 8, 2025

Official eBay Open 2025 Las Vegas stage photo celebrating sellers and innovation in ecommerce

Seller Journey

Growth & Operations

7 min read

From Seller to Developer: How eBay Open Inspired Me to Build Listing Automation Software
From Seller to Developer: How eBay Open Inspired Me to Build Listing Automation Software

by Jack Blum

Jun 15, 2025

MyListerHub smart pricing tool adjusting eBay listing prices automatically

Automation & Productivity

Selling Strategies

7 min read

Why Every eBay Seller Needs a Smart Pricing Tool
Why Every eBay Seller Needs a Smart Pricing Tool

by Jack Blum

Nov 15, 2024

MyListerHub automation dashboard simplifying eBay seller workflows and scaling efficiency

Automation & Productivity

Selling Strategies

8 min read

The Best Automation Strategies for eBay Sellers in 2024
The Best Automation Strategies for eBay Sellers in 2024

by Jack Blum

Nov 15, 2024

MyListerHub tools optimizing eBay listings with automation and smart pricing

Education & Guides

Listings & SEO

7 min read

Optimize Your eBay Listings and Increase Your Sales with MyListerHub
Optimize Your eBay Listings and Increase Your Sales with MyListerHub

by Jack Blum

Nov 15, 2024

MyListerHub message hub showing organized buyer conversations and insights

Growth & Operations

Automation & Productivity

5 min read

Improve Customer Communication on eBay and Increase Your Sales with MyListerHub
Improve Customer Communication on eBay and Increase Your Sales with MyListerHub

by Jack Blum

Nov 15, 2024

Modern eBay inventory system showing automation, AI, and multi-store management

Automation & Productivity

AI & Machine Learning

8 min read

How to Simplify Inventory Management for Your eBay Business
How to Simplify Inventory Management for Your eBay Business

by Jack Blum

Nov 15, 2024

U.S. eBay seller organizing inventory and using automation tools to streamline listing and pricing workflows

Automation & Productivity

Growth & Operations

8 min read

How eBay Sellers Have Expanded Their Businesses in 2025 Thanks to MyListerHub
How eBay Sellers Have Expanded Their Businesses in 2025 Thanks to MyListerHub

by Jack Blum

Nov 15, 2024

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