Nicheloom

The opportunity tracker for new startups.

Sources

book discovery and reading tools

Recent window: last 5.2 months (2026-04-27 → 2026-10-03), compared with the prior 5.2 months.

media · 213 members · Data as of 2026-10-06

These products offer book recommendation engines, enhanced reading interfaces, and digital resources for exploring literature and long-form texts. They serve avid readers, researchers, and learners looking to discover, organize, and consume written knowledge more effectively. This cluster is distinguished by its focus on reading comprehension, book cataloging, and literary discovery rather than writing or content creation.

Metrics

Stage
crowded
Recent count
157
Prior count
35
Total count
213
Momentum
300.00
Attention
0.33
Crowding
0.77
Concentration
0.80
Opportunity
0.44

Opportunity components

Attention
0.33
Low crowding
0.23
Momentum (normalized)
1.00
Low concentration
0.20

Source split

github
11 (0.07)
hn
36 (0.23)
ph
109 (0.69)
yc
1 (0.01)

Dominant source: ph · Divergence: 0.69

Similar niches

Monthly trajectory

Members

Name Source Upvotes ▼ Launched
Cover Culture PH 8 2026-09-25
goodreadskosync GITHUB 7 2026-09-13
Bad Aura PH 7 2026-09-21
A food guide that ignores Google and Yelp ratings HN 7 2025-12-16
litsurvey GITHUB 7 2026-09-11
MajinBook = Anna's Archive and Goodreads HN 7 2026-08-25
Read Kindle Like X HN 7 2026-01-05
I built an opinionated minimalist ePub/pdf online reader HN 7 2026-06-28
Hacker Fables HN 7 2026-07-30
A map of historical movies by narrative location and time period HN 7 2026-02-01
How to Get a Fable CoT for the Jacobian Conjecture Refutation HN 7 2026-07-21
A new way to read books, magnifying in and out HN 7 2026-08-19
Intelligent search and analysis for your browsing history HN 6 2026-01-12
Jurl HN 6 2026-10-05
Stumbleback HN 6 2026-05-27
Llama 3.2 3B and Keiro Research achieves 85% on SimpleQA HN 6 2026-03-07
Explore 2200+ games with Zero reviews on Steam HN 6 2025-11-18
Bookshelf HN 6 2026-07-23
Open KB: Open LLM Knowledge Base HN 6 2026-04-13
I built a tool to translate and declutter articles for my immigrant mom HN 6 2026-02-28
20,000 words HN 6 2026-08-27
BookWard - Read, Remember, Discover PH 6 2026-09-21
I built an iOS app that turns EPUBs into audiobooks HN 6 2026-02-24
A beautiful and local-first PDF reader for studying dense things HN 6 2026-06-06
CoLit HN 6 2025-11-08
I built Goodreads for academic papers to help my wife survive her PhD HN 5 2026-01-26
Compare Wikipedia articles between languages in the Middle East HN 5 2026-08-11
Qavvali Wiki HN 5 2026-05-24
Kerns HN 5 2026-01-07
Justif HN 5 2026-07-17
Homer's Odyssey Tree Viewer HN 5 2026-07-15
I built time to read all the things I want to HN 5 2025-12-14
OBook Text To Speech PH 5 2026-09-26
PagePals PH 5 2026-09-25
ReadPlusOne HN 5 2026-08-25
A graph of story fragments shaped by reader votes HN 5 2026-03-12
NotebookLM Calibre Plugin HN 5 2026-08-11
Browse last quarter's Supreme Court cases, linked and cited as you read HN 5 2026-09-17
Extension to See Rating from Google Book, Amazon,StoryGraph on Goodread HN 5 2026-03-21
Visualizing How Books Reference Each Other Across 3k Years HN 5 2026-02-11
Read while you listen to your Audiobooks HN 5 2026-09-26
Guten HN 5 2026-05-06
Repy HN 5 2026-02-15
Nufa PH 4 2026-09-26
Tamis PH 4 2026-10-06
Scroll+ PH 4 2026-09-23
QueerCade PH 4 2026-09-30
Colophon PH 4 2026-09-20
whichWay PH 3 2026-09-26
The 30 Best Innovation Methods Book PH 3 2026-09-15